• Black and white Carbon Evo 50 backpack with a visible brand logo on a white background
  • Angled front view of ultralight backpack highlighting front mesh pocket and compression system.
  • diagram showing elements of the CARBONFLEX™ Suspension System used in an ultralight backpack
  • Backpack roll-top closure expanded to show additional storage capacity.
  • Inside view of backpack showing integrated carbon fiber frame stays for load support.
  • Front stretch mesh pocket on backpack made from durable UltraStretch fabric.
  • Backpack side pockets holding two 1-liter water bottles for easy access while hiking.
  • Close-up of backpack reinforced bottom panel fabric for abrasion resistance.
  • Backpack front panel showing trekking pole attachment loops and elastic retention system.
  • Back panel of backpack showing targeted foam cutouts for comfort and ventilation.
  • Close-up of backpack bottom showing self-compressing curved base designed to optimize load stability.
  • Close-up of backpack hip belt showing dual anchor belt system for improved load transfer.
  • Close-up of large hip belt pocket on backpack designed for one-handed access.
  • Interior view of backpack showing removable hydration sleeve.
  • Close-up of backpack side panel showing adjustable load-compression cords.
  • Top view of backpack showing adjustable Y-strap used to secure bulky gear.
  • Front view of ultralight backpack with large stretch front pocket and roll-top closure.
  • Angled rear view of ultralight backpack showing suspension system, shoulder straps, and hip belt.
  • Left side view of ultralight backpack showing compression cords and side storage pocket.
  • Right side view of ultralight backpack showing compression system and side pocket design.
  • Rear view of hiker wearing Carbon Evo 50 backpack with side water bottle pockets while hiking through forest at dusk
  • Hiker wearing Carbon Evo 50 backpack on mountain ridgeline with snow-covered forest in the background
  • Side profile of hiker carrying Carbon Evo 50 backpack with trekking poles and full pack load
  • Rear view of hiker wearing Carbon Evo 50 backpack while hiking through open alpine terrain
1 25

Carbon Evo 50 Backpack

The evolution of comfort for long distance backpacking.

$279.97
Membership Pricing: $251.97

The Carbon Evo 50 Backpack is designed for real load carry, a simplified design, & exceptional comfort under 2 lbs.

  • CARBONFLEX™ Suspension System distributes weight while giving you more mobility and comfort than other ultralight backpacks
  • Durable ultralight fabrics ensure abrasion resistance without a weight penalty
  • Capacity: ~58L total
Torso Size
Hip Belt Size
Color
Description

Lighter. Smarter. More Comfortable Than Ever.

The Carbon Evo 50 Backpack is our most comfortable, dialed-in ultralight pack yet—engineered for long-distance backpackers who demand real load carry, simplified design, and exceptional comfort under 2 lbs.

With a refined 50L+ capacity, our CARBONFLEX™ Suspension System, and a paired-down pocket layout, the Evo 50 is built for seasoned hikers who want ultralight performance without sacrificing comfort or ease-of-use.
Specs
  • Weight: 30 oz (size R with M hip belt)
  • Volume: 47L main + 11L external pockets = ~58L total
  • Main Fabric: 100D Robic Nylon w/ 200D Spectra Ripstop
  • Bottom Panel Fabric: 210D Robic Nylon w/ 400D Spectra Ripstop
  • Water Resistance: WP Rating 1500 mm HH
  • Suspension Height: 17.7" (S) | 19.2" (R) | 21" (T)
  • Bag Height: 21.5" (S) | 24" (M & T)
  • Bag Max Width (top of bag): 11.8”
  • Bag Max Depth (middle of bag): 7.25"
  • Bag Sizes: Short, Regular, Tall
  • Hip Belt Sizes: XS – XL
  • Zippers: YKK
  • Max Recommended Carry Weight: 40 lbs
  • Hydration Compatible: This pack can be used with most water bladders if desired
  • Colors: White
  • Warranty: Outdoor Vitals Performance Promise
Key Features

CARBONFLEX™ Suspension System is our most comfortable frame, harness, & load lift system yet (learn more in next drop-down)

Anatomically curved carbon fiber frame stays with functional load lifters keeps your pack weight distributed correctly & comfortably

Functional load lifter straps

Top Y-strap for load stability or securing additional items

Roll-top closure with top cinch strap for securing gear like pads or shelters

3 point side compression cords

Self-compressing curved bottom profile keeps the load high and close

Improved hip belt contact for increased comfort & functionality

Dual anchor belt system for more comfortable pressure distribution & easier belt adjustments

Ultrastretch main stretch pocket - the highest wear area is now bombproof. 

Removable hip belt for added versatility

Zippered hip belt pockets with improved zippers (easy 1 hand operation) and key clip

Two side bottle pockets that fit two 1 liter bottles each

Ice axe/trekking pole attachment loops

External Lashing Loops for attaching additional gear to the pack

Removable hydration sleeve

Colored white for reduction in heat on contents
video showing benefits and features of Carbon Evo 50 Backpack

What Makes The Carbon Evo 50 So Comfortable

Less Complexity = More Efficiency

Why Choose The Carbon Evo 50?

What Makes The Carbon Evo 50 So Comfortable

Other ultralight packs often sacrifice load carry capabilities in the name of weight savings. The Carbon Evo 50 focuses on comfortable load carry as its #1 priority.

CARBONFLEX™ Suspension System: This is our most comfortable backpack suspension system yet, with precisely tuned carbon fiber frame stays, a wrap-around hip belt fit, functional load lifters, & our proprietary shoulder strap design.  

What Makes The Carbon Evo 50 So Comfortable

diagram showing elements of the CARBONFLEX™ Suspension System used in an ultralight backpack

Other ultralight packs often sacrifice load carry capabilities in the name of weight savings. The Carbon Evo 50 focuses on comfortable load carry as its #1 priority.

CARBONFLEX™ Suspension System: This is our most comfortable backpack suspension system yet, with precisely tuned carbon fiber frame stays, a wrap-around hip belt fit, functional load lifters, & our proprietary shoulder strap design.  

Less Complexity = More Efficiency

The Evo 50 features a simplified pocket layout to reduce weight, streamline access, and eliminate unnecessary bulk.

This helps you stay organized without overcomplicating your system. The streamlined design & ultralight weight will help you cover miles in the backcountry without skipping a beat.

Less Complexity = More Efficiency

Backpack roll-top closure expanded to show additional storage capacity.

The Evo 50 features a simplified pocket layout to reduce weight, streamline access, and eliminate unnecessary bulk.

This helps you stay organized without overcomplicating your system. The streamlined design & ultralight weight will help you cover miles in the backcountry without skipping a beat.

Why Choose The Carbon Evo 50?

Because ultralight doesn’t have to mean uncomfortable. The Carbon Evo 50 is lighter, more comfortable, and easier to use than traditional framed packs—and more supportive than most ultralight alternatives. It's built for serious miles, offering load-hauling ability with a minimalist design, optimized weight distribution, and materials that hold up to hard use.

If you’ve cut your gear down to the essentials but still want a framed pack that carries like a dream, the Carbon Evo 50 is the answer.

Why Choose The Carbon Evo 50?

Rear view of hiker wearing Carbon Evo 50 backpack while hiking through open alpine terrain

Because ultralight doesn’t have to mean uncomfortable. The Carbon Evo 50 is lighter, more comfortable, and easier to use than traditional framed packs—and more supportive than most ultralight alternatives. It's built for serious miles, offering load-hauling ability with a minimalist design, optimized weight distribution, and materials that hold up to hard use.

If you’ve cut your gear down to the essentials but still want a framed pack that carries like a dream, the Carbon Evo 50 is the answer.

Key Features

Ultralight, Yet Fully Capable

At just 30 oz, the Carbon Evo 50 delivers ~58L of usable space (47L internal + 11L external), perfect for thru-hikes, long weekends, or backcountry missions. It's stripped down where it should be—but never short on critical features.

Next-Gen Comfort: CARBONFLEX™ Suspension System

Our most advanced frame system to date, featuring:

  • Anatomically curved carbon fiber stays that move with your body for load support up to 40 lbs
  • True load lifter straps for better weight transfer and shoulder relief
  • Improved hip belt design for increased contact, comfort & pressure distribution
  • Dual anchor belt system for secure fit & quick adjustments on the trail

The result? All-day comfort, even with real loads. Most “airflow” suspension systems add weight and reduce control. The Carbon Evo 50 keeps your load stable, efficient, and close—exactly what long-distance backpackers want.

Ultralight, Yet Fully Capable

At just 30 oz, the Carbon Evo 50 delivers ~58L of usable space (47L internal + 11L external), perfect for thru-hikes, long weekends, or backcountry missions. It's stripped down where it should be—but never short on critical features.

Next-Gen Comfort: CARBONFLEX™ Suspension System

Our most advanced frame system to date, featuring:

  • Anatomically curved carbon fiber stays that move with your body for load support up to 40 lbs
  • True load lifter straps for better weight transfer and shoulder relief
  • Improved hip belt design for increased contact, comfort & pressure distribution
  • Dual anchor belt system for secure fit & quick adjustments on the trail

The result? All-day comfort, even with real loads. Most “airflow” suspension systems add weight and reduce control. The Carbon Evo 50 keeps your load stable, efficient, and close—exactly what long-distance backpackers want.

Simplified Storage, Smarter Design

The design of the Carbon Evo 50 is intentionally simple: 1 large compartment for most of your gear, easily accessible side pockets for water, and a stretch mesh exterior pocket for quick-stash items. The large hip belt pockets give you plenty of space for any on-the-go items you need during your hikes.

Optimized Load Carry For Distance

The self-compressing curved shape of the bottom of the pack keeps your load weight closer to your back. When you combine this with the CARBONFLEX™ Suspension System, you get a backpack that carries your load more comfortably and efficiently for long distances.

Angled front view of ultralight backpack highlighting front mesh pocket and compression system.

Simplified Storage, Smarter Design

The design of the Carbon Evo 50 is intentionally simple: 1 large compartment for most of your gear, easily accessible side pockets for water, and a stretch mesh exterior pocket for quick-stash items. The large hip belt pockets give you plenty of space for any on-the-go items you need during your hikes.

Optimized Load Carry For Distance

The self-compressing curved shape of the bottom of the pack keeps your load weight closer to your back. When you combine this with the CARBONFLEX™ Suspension System, you get a backpack that carries your load more comfortably and efficiently for long distances.

Hiker wearing Carbon Evo 50 backpack on mountain ridgeline with snow-covered forest in the background

Ideal For

  • Thru-hikers looking to lighten up without losing support
  • Long distance hikers focused on comfort, ultralight weight, & high mileage
  • Backpackers who value simplicity, structure, and comfort
  • Ultralight pros looking for the next evolution of performance packs

Testimonials

OV Media Mentions

Design Story

Frequently Asked Questions

Product, Shipping, & Warranty Info

Full Description

Lighter. Smarter. More Comfortable Than Ever.

The Carbon Evo 50 Backpack is our most comfortable, dialed-in ultralight pack yet—engineered for long-distance backpackers who demand real load carry, simplified design, and exceptional comfort under 2 lbs.

With a refined 50L+ capacity, our CARBONFLEX™ Suspension System, and a paired-down pocket layout, the Evo 50 is built for seasoned hikers who want ultralight performance without sacrificing comfort or ease-of-use.

 

 

Key Features:

🏔️ Ultralight, Yet Fully Capable

At just 30 oz (size M/M), the Carbon Evo 50 delivers ~58L of usable space (47L internal + 11L external), perfect for thru-hikes, long weekends, or backcountry missions. It's stripped down where it should be—but never short on critical features.

🔧 Next-Gen Comfort: CARBONFLEX™ Suspension System

Our most advanced frame system to date, featuring:

  • Anatomically curved carbon fiber stays that move with your body for load support up to 40 lbs

  • True load lifter straps for better weight transfer and shoulder relief

  • Improved hip belt design for increased contact, comfort & pressure distribution

  • Dual anchor belt system for secure fit & quick adjustments on the trail

The result? All-day comfort, even with real loads. Most “airflow” suspension systems add weight and reduce control. The Carbon Evo 50 keeps your load stable, efficient, and close—exactly what long-distance backpackers want.

🎒 Simplified Storage, Smarter Design

  • Roll-top closure + top Y-strap (perfect for securing pads, shelters, or bear canisters)

  • Oversized UltraStretch™ Mesh rear pocket—durable & functional in high-wear zones

  • 2 large side water bottle pockets—each fits two 1L bottles

  • 2 zippered hip belt pockets with easy one-hand operation + key clip

  • Ice axe/trekking pole attachment loops

  • External lashing loops for overflow gear

  • Self-compressing curved bottom keeps your load high and stable

  • Removable hydration sleeve

  • Removable hip belt for versatility

 

 

Why Choose the Carbon Evo 50?

Because ultralight doesn’t have to mean uncomfortable. The Carbon Evo 50 is lighter, more comfortable, and easier to use than traditional framed packs—and more supportive than most ultralight alternatives. It's built for serious miles, offering load-hauling ability with a minimalist design, optimized weight distribution, and materials that hold up to hard use.

If you’ve cut your gear down to the essentials but still want a framed pack that carries like a dream, the Carbon Evo 50 is the answer.

 

 

Perfect For:

  • Thru-hikers looking to lighten up without losing support

  • Backpackers who value simplicity, structure, and comfort

  • Ultralight pros looking for the next evolution of performance packs

 

 

Built for comfort. Streamlined for distance.
 The Carbon Evo 50 Backpack is your new go-to for serious ultralight miles.
Product Care

Spray off both the outside and inside of your backpack frequently. 

To further prevent wear and tear, try to keep your backpack out of the dirt by hanging your backpack up where possible. 

If you really feel the need to get soap involved, get a tote or fill up your tub with water, and put just a little bit of that NikWax Tech Wash we mentioned before in there.

Soak your backpack in that mixture, scrub it a little bit, and the make sure it gets completely rinsed off. 

Once again, spraying off and cleaning your backpack is something that should be done frequently!
How long does shipping take?

Orders for in-stock items will begin processing 1-2 days after your online purchase is completed. Please note that business days are Monday through Friday, excluding holidays in the United States. Once processed, Priority shipping generally takes 1-3 days to arrive. Note that USPS Priority shipping is a time estimate and not guaranteed. You will receive an email notification once your package leaves our warehouse.

If you place an order that includes a backordered or pre-sale item, we will hold the entire order until the pre-sale item is in stock. If you would like to receive the in-stock items sooner and split your order into two shipments, please place two separate orders or pay an additional shipping fee to have the order divided into two shipments.
Do you ship to addresses outside the US?

Some countries may be excluded from our shipping options due to extremely high shipping costs, unsafe conditions for US carriers, or unreliable delivery services. To check if we can ship to your country, please go to the Checkout page and enter your shipping address.

Customers have the option to prepay duties and taxes for certain countries. If these fees are not prepaid, customers may be responsible for them upon delivery, depending on the import laws and regulations of their respective countries. We recommend checking with your local customs office to see if these apply in your area. APC Economy Shipping

Please note that the situation regarding duties and taxes is constantly changing. We are working to stay updated on the varying shipping costs as they evolve. Also, Live Ultralight Members and Peak tier members do no get free shipping to international addresses.
What is your returns/exchange policy?

Shop with Confidence: OV's Simple Returns Policy

  • Free First Exchange:* Enjoy your first exchange at no extra cost with each order (USA only).
  • 60-Day Return Window:** You have 60 days to return items; this is extended to 90 days for purchases made in November and December.
  • Easy Return Shipping:* We provide return labels or QR codes for your convenience (USA & Canada only). 

For more information, please visit our Warranty/Returns page. 

https://outdoor-vitals.loopreturns.com/#/

*Please note: Clearance items are final sales and are not eligible for returns or exchanges. Items such as soft flasks (included with our Skyline Fastpack) cannot be returned due to sanitary reasons. If you choose to return your fastpack, a $15 charge per bottle or flask will be deducted from your refund, unless the bottles or flasks are returned with their original packaging still intact.
Do you have a product warranty?

Our gear is made with the goal in mind of balancing ultralight weight, performance, comfort and durability. We believe in the “Live Ultralight” mantra so we focus on ultralight weight and performance while maintaining durability thresholds established for each product.

Our warranty covers manufacturing & workmanship defects for the Expected Lifespan of our products. Expected Product Lifespan is determined by OV Gear Specialists using the following criteria:

  • Product design intent & materials specifications
  • Intended use of the product
  • The specific issue encountered with the product
  • The age of the product (based on Manufacture date)
Is the Carbon Evo 50 Backpack comfortable for long-distance backpacking?

Yes. The Carbon Evo 50 Backpack is specifically designed for long-distance comfort. Its CARBONFLEX™ Suspension System uses an anatomically curved carbon fiber frame, functional load lifters, and an improved dual-anchor hip belt to distribute weight efficiently and reduce shoulder fatigue over long miles.
How much weight can the Carbon Evo 50 Backpack carry comfortably

The Carbon Evo 50 is rated to carry up to 40 lbs comfortably. Unlike many ultralight backpacks that struggle under real loads, its carbon fiber frame and true load lifters maintain proper weight transfer to the hips.
How much does the Carbon Evo 50 Backpack weigh?

The Carbon Evo 50 weighs 30 oz (1.9 lbs) in size Regular/Medium, making it one of the lightest framed 50L backpacks available while still offering real load support.
What is the total capacity of the Carbon Evo 50 Backpack?

The total capacity is approximately 58 liters, including 47L of internal storage (rolled 4 times) and 11L of external storage. This makes it ideal for thru-hiking, long weekends, and fastpacking.
Is the Carbon Evo 50 Backpack waterproof?

The Carbon Evo 50 is water-resistant, not waterproof. It features a 1500 mm HH PU coating, but it is not seam-sealed. For wet conditions, a pack liner or dry bags are recommended.
How is the Carbon Evo 50 different from traditional ultralight backpacks?

Most ultralight backpacks reduce comfort to save weight. The Carbon Evo 50 prioritizes real load carry, using a carbon fiber frame and functional load lifters while still staying under 2 lbs. This results in better comfort with heavier loads compared to frameless or minimal-frame packs.
What makes the CARBONFLEX™ Suspension System different?

CARBONFLEX™ combines an anatomically curved carbon fiber frame with true load lifters and an improved hip belt design. This system keeps weight high and close to the body, improving balance and reducing fatigue compared to airflow-style suspension systems that add weight and reduce control.
Does the Carbon Evo 50 Backpack fit a bear canister?

Yes. The Carbon Evo 50 can accommodate most standard bear canisters. The roll-top design and top Y-strap also allow secure external carry when needed.
How many water bottles fit in the side pockets?

Each side pocket fits two 1-liter bottles, allowing up to 4 liters of water to be carried externally without affecting pack balance.
Is the hip belt removable?

Yes. This pack features a removable hip belt, allowing users to customize the pack for lighter loads or specific trip styles. This also makes it easy to swap belts if you need a different size later down the road.
What sizes does the Carbon Evo 50 Backpack come in?

The pack is available in Short, Regular, and Tall torso sizes, with hip belts ranging from XS to XL, ensuring a precise fit for a wide range of body types.
Is the Carbon Evo 50 Backpack good for thru-hiking?

Yes. The Carbon Evo 50 is built specifically for thru-hiking and high-mileage backpacking. Its lightweight design, efficient storage, and ability to carry real loads make it well-suited for long-distance trails like the PCT, CDT, and AT.
Does the Carbon Evo 50 Backpack work with hydration bladders?

Yes. The pack is hydration compatible and includes a removable hydration sleeve that works with most standard water bladders.
What materials is the Carbon Evo 50 made from?

The main body uses 100D Robic Nylon with 200D Spectra® Ripstop, with 210D Robic Nylon with 400D Spectra® Ripstop in high-abrasion areas. These fabrics balance durability and weight for long-term use.
Why is the Carbon Evo 50 Backpack white?

The white color reflects sunlight, helping reduce heat buildup inside the pack and keeping contents cooler in hot, exposed conditions.

  • Brand Story

    From humble beginnings to now - find out what makes us who we are & how we are contributing to the outdoors.

    Learn More

  • Design Philosophy

    We don't just go for the lightest design. Find out what makes OV different & what "Performance-First" actually means.

    Learn More

  • Live Ultralight Membership

    Essentially a free savings account for gear that gives you year round discounts...

    Join Now