Highline Thermal Leggings

Superior Temperature Regulation & Warmth For Backcountry Layering

$79.97
Membership Pricing: $71.97

The Highline Thermal Leggings were built for max warmth in the backcountry at an ultralight weight.

  • Excellent stretch for optimal comfort
  • Faster dry times than other thermal leggings
  • Superior temperature regulation & venting
Size
What's My Size?

Description
Specs
  • Main Fabric: Proprietary polyester fleece by TORAY
  • Fabric Weight: 102 g/m2
  • Secondary Fabric: jersey knit mesh
  • Inseam Length: 30" (size M) -length changes 1 inch per size
  • Color: black
  • Gender: Male
  • Warranty: Outdoor Vitals Performance Promise
Key Features

Gusseted mesh crotch for optimal ventilation

100% polyester Japanese fabric

Brushed with proprietary process for maximum loft & warmth

Smooth exterior for better durability

Great stretch & shape retention

0% spandex for faster dry times & lighter weight

Very warm for ultralight sub 4 oz weight

How Warm Are The Highline Thermals?

How Should You Use The Highline Leggings?

How The Highline Leggings Fit

How Warm Are The Highline Thermals?

The Highline Thermal Leggings are designed to deliver maximum warmth for minimal weight. The brushed fleece interior traps heat efficiently, creating a thin layer of insulation without bulk.

Compared to traditional base layers, they provide significantly more warmth for their weight - making them ideal for camp, sleep systems, and cold-weather layering.

How Warm Are The Highline Thermals?

The Highline Thermal Leggings are designed to deliver maximum warmth for minimal weight. The brushed fleece interior traps heat efficiently, creating a thin layer of insulation without bulk.

Compared to traditional base layers, they provide significantly more warmth for their weight - making them ideal for camp, sleep systems, and cold-weather layering.

How Should You Use The Highline Leggings?

The Highline Thermal Leggings are designed primarily as a base layer. They are worn under shorts or pants for added warmth during hiking, or on their own while sleeping or at camp.

They are not intended for rugged use, but excel as part of a layering system where warmth and weight savings matter.

How Should You Use The Highline Leggings?

The Highline Thermal Leggings are designed primarily as a base layer. They are worn under shorts or pants for added warmth during hiking, or on their own while sleeping or at camp.

They are not intended for rugged use, but excel as part of a layering system where warmth and weight savings matter.

How The Highline Leggings Fit

The Highline Leggings are designed with a close-to-body fit to maximize thermal efficiency and layering performance. The stretch fabric allows full range of motion while keeping the material in contact with your skin for better warmth.

How The Highline Leggings Fit

The Highline Leggings are designed with a close-to-body fit to maximize thermal efficiency and layering performance. The stretch fabric allows full range of motion while keeping the material in contact with your skin for better warmth.

Key Features

More Warmth For Less Weight

To us, nothing is basic and nothing should be overlooked, so when we decided to design thermals we started by researching and testing a wide variety of fabric options, eventually landing on an ultra lightweight, 100% polyester, Japanese fabric that is lofted on the inside using a proprietary method to give you the most loft for the weight in its class.

Excellent Stretch With Faster Dry Times

The highline thermals offer great stretch and shape retention without the use of spandex - allowing less weight, faster dry times and more comfort next to skin.

More Warmth For Less Weight

To us, nothing is basic and nothing should be overlooked, so when we decided to design thermals we started by researching and testing a wide variety of fabric options, eventually landing on an ultra lightweight, 100% polyester, Japanese fabric that is lofted on the inside using a proprietary method to give you the most loft for the weight in its class.

Excellent Stretch With Faster Dry Times

The highline thermals offer great stretch and shape retention without the use of spandex - allowing less weight, faster dry times and more comfort next to skin.

Superior Temperature Regulation & Venting

When using thermals during the day or sleeping in them at night, a common problem is venting in target areas. We’ve added a vented crotch gusset to ensure warmth in the right areas and eliminate overheating in others. This allows you to extend your time in the thermals or sleep more comfortably through the night.

Ultralight Weight & Packability

These sub 4 ounce thermals take the edge off of those cold mornings, late nights or brisk winter trips all while packing down to nothing in your pack.

Superior Temperature Regulation & Venting

When using thermals during the day or sleeping in them at night, a common problem is venting in target areas. We’ve added a vented crotch gusset to ensure warmth in the right areas and eliminate overheating in others. This allows you to extend your time in the thermals or sleep more comfortably through the night.

Ultralight Weight & Packability

These sub 4 ounce thermals take the edge off of those cold mornings, late nights or brisk winter trips all while packing down to nothing in your pack.

Ideal For

  • backpackers
  • thru-hikers
  • cold mornings / evenings
  • camp use
  • sleep layer
OV Media Mentions OV Media Mentions OV Media Mentions

Design Story

Performance Metrics Relative To OV Products

Base Layer

Warmth

Breathability

Water Resistance

Wind Resistance

Durability

Stretch

Packability

Highline Thermal Leggings

4/10

8/10

2/10

3/10

4/10

6/10

6/10

Frequently Asked Questions

Product, Shipping, & Warranty Info

Full Description

Extremely high warmth for an ultralight weight.

 

Some chase the good weather. They plan everything according to convenience.

But others…well we don’t let cooler temps, mis-timed seasons, or mother nature dictate what we can or can’t do.

To us, we require more out of our gear to live life on our terms.
And that’s exactly why we need gear designed for maximum performance, such as the Highline Thermal Leggings.

More Warmth For Less Weight: To us, nothing is basic and nothing should be overlooked, so when we decided to design thermals we started by researching and testing a wide variety of fabric options, eventually landing on an ultra lightweight, 100% polyester, Japanese fabric that is lofted on the inside using a proprietary method to give you the most loft for the weight in its class.

Excellent Stretch With Faster Dry Times: The highline thermals offer great stretch and shape retention without the use of spandex - allowing less weight, faster dry times and more comfort next to skin.

Superior Temperature Regulation & Venting: When using thermals during the day or sleeping in them at night, a common problem is venting in target areas. We’ve added a vented crotch gusset to ensure warmth in the right areas and eliminate overheating in others. This allows you to extend your time in the thermals or sleep more comfortably through the night.

Ultralight Weight & Packability: These sub 4 ounce thermals take the edge off of those cold mornings, late nights or brisk winter trips all while packing down to nothing in your pack.

Whether you're embarking on a cold-weather hike, seeking a more comfortable sleeping set, or simply braving chilly mornings, our Highline Thermal Leggings will keep you warm and comfortable without weighing you down.

Product Care

Your Highline Thermal Leggings are a high performance piece of gear. They need some extra attention to keep it performing at the highest level.

Please read through the care instructions below to ensure that you care for them properly:

Before Washing

  • Never wash your Highline Thermal Leggings with anything with velcro or similar hook & loop characteristics.
  • Never wash your Highline Leggings in a washing machine that has an agitator.
  • If you cannot follow either of these prior instructions you should hand wash your product using the detergent and drying process described below.


The Wash & Dry Process

  1. Machine wash cold
  2. Do not use bleach
  3. Tumble dry low heat or hang dry
  4. Do not iron


For more information on caring for your gear please visit https://outdoorvitals.com/pages/care-guide-faq

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)
  • Brand Story

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

  • Design Philosophy

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

  • Live Ultralight Membership

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