• Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
  • Tern Ultralight Merino Wool Tee
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Tern Ultralight Merino Wool Tee

Odor Resistant Base Layer For The Backcountry

$59.97
Membership Pricing: $53.97
  • Naturally odor and bacteria resistant merino wool
  • Ultralight weight
  • Dries faster than typical merino wool blends
Fabric
Size
Color: Teal
What's My Size?

Description

The Tern Ultralight Tee is designed to give you the comfort of merino wool with the performance needed for real backcountry use. Built with an ultralight NuYarn™ merino blend, it delivers breathability, odor resistance, and temperature regulation in a layer that adapts to changing conditions. Whether you're hiking in exposed sun, moving through cool mornings, or dealing with shifting weather, it helps you stay comfortable without constantly changing layers.

At just around 5 oz, the Tern works as both a sun shirt and a base layer, giving you full coverage without unnecessary bulk. It dries faster and holds its shape better than traditional merino, while still offering the natural feel and multi-day performance wool is known for. For backpacking, travel, and long days outdoors, it’s a versatile layer built to do more than a standard shirt.
Specs
  • Poly Blend Fabric: 115 GSM Merino Wool blend - 63% merino (18 micron), 29% polyester, 8% nylon, knit
  • Fit: Close
  • The Tern Tee should fit close to skin and fit easily beneath other layers.
  • Gender: Men's sizing
  • PFAS free
Key Features

True Flat-Lock Seams

Raglan Sleeves

Excellent Stretch

Moisture Wicking

Bacteria/Odor Resistant

Quick Drying

Athletic Fit for Baselayer or Stand-Alone Layer

Holds Shape (even when wet)

UPF Rating 36+

Farm to fabric RWS (Responsible Wool Standard) certified wool by NuYarn™

Merino vs. Synthetic - Which Is Better?

Stronger Than Traditional Merino

Where The Tern Tee Fits In Your System

Merino vs. Synthetic - Which Is Better?

Synthetic tops excel in extreme heat and fast drying, but they tend to retain odor and feel less comfortable over time. The Tern combines natural odor resistance, temperature regulation, and improved durability to create a more versatile layer for multi-day use.

If your priority is comfort, versatility, and extended wear, the Tern is the better choice.

Merino vs. Synthetic - Which Is Better?

Synthetic tops excel in extreme heat and fast drying, but they tend to retain odor and feel less comfortable over time. The Tern combines natural odor resistance, temperature regulation, and improved durability to create a more versatile layer for multi-day use.

If your priority is comfort, versatility, and extended wear, the Tern is the better choice.

Stronger Than Traditional Merino

The Tern uses NuYarn™ technology, which wraps merino fibers around a synthetic core to improve durability, stretch, and shape retention. This makes it significantly stronger than traditional merino wool while maintaining the natural comfort and performance of wool.

It’s built for real use in backpacking and outdoor conditions — not just casual wear.

Stronger Than Traditional Merino

The Tern uses NuYarn™ technology, which wraps merino fibers around a synthetic core to improve durability, stretch, and shape retention. This makes it significantly stronger than traditional merino wool while maintaining the natural comfort and performance of wool.

It’s built for real use in backpacking and outdoor conditions — not just casual wear.

Where The Tern Tee Fits In Your System

The Tern Ultralight Tee is designed as a primary base layer that adapts to changing conditions.

  • Warm weather → worn alone as a sun layer
  • Cool conditions → base layer under insulation
  • Variable conditions → all-day wear

It’s built to reduce the need to constantly change layers, making it one of the most versatile pieces in your kit.

Where The Tern Tee Fits In Your System

The Tern Ultralight Tee is designed as a primary base layer that adapts to changing conditions.

  • Warm weather → worn alone as a sun layer
  • Cool conditions → base layer under insulation
  • Variable conditions → all-day wear

It’s built to reduce the need to constantly change layers, making it one of the most versatile pieces in your kit.

Key Features

Moisture Management

Experience excellent moisture-wicking capabilities, allowing the merino wool blend to effectively draw moisture away from your body while retaining its shape exceptionally well. Ideal for both hot weather and as a base layer in cold temperatures. 

Comfortable Fit

The athletic fit of the Tern ensures comfort without being tight or restrictive. This design enhances the merino wool's moisture-wicking properties. With no hardware, simplicity reigns, contributing to decreased weight for high activity.

Moisture Management

Experience excellent moisture-wicking capabilities, allowing the merino wool blend to effectively draw moisture away from your body while retaining its shape exceptionally well. Ideal for both hot weather and as a base layer in cold temperatures. 

Comfortable Fit

The athletic fit of the Tern ensures comfort without being tight or restrictive. This design enhances the merino wool's moisture-wicking properties. With no hardware, simplicity reigns, contributing to decreased weight for high activity.

Odor and Bacteria Resistance

Benefit from the natural odor-resistant properties of merino wool, making the Tern perfect for travel, running, hiking, and everyday use. The ultralight weight adds to its versatility.

Better Shape Retention

the new Poly blend Tern fabric holds its shape exceptionally well for merino wool, even when wet.  It will stretch sufficiently without “bagging out” & becoming shapeless. 

Odor and Bacteria Resistance

Benefit from the natural odor-resistant properties of merino wool, making the Tern perfect for travel, running, hiking, and everyday use. The ultralight weight adds to its versatility.

Better Shape Retention

the new Poly blend Tern fabric holds its shape exceptionally well for merino wool, even when wet.  It will stretch sufficiently without “bagging out” & becoming shapeless. 

Ideal For

  • sun shirt + base layer hybrid
  • multi-day backpacking
  • variable conditions
  • trail running
  • year round base layer

Testimonials

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

Tern Ultralight Merino Wool Tee

1/10

9/10

1/10

1/10

3/10

6/10

8/10

Frequently Asked Questions

Product, Shipping, & Warranty Info

Full Description

The Tern Ultralight Merino Wool Tee is engineered for optimal moisture-wicking, comfort, sun protection, and quick-drying performance while managing odor & bacteria buildup. 

  • Moisture Management: Experience excellent moisture-wicking capabilities, allowing the merino wool blend to effectively draw moisture away from your body while retaining its shape exceptionally well. Ideal for both hot weather and as a base layer in cold temperatures. 
  • Comfortable Fit: The athletic fit of the Tern ensures comfort without being tight or restrictive. This design enhances the merino wool's moisture-wicking properties. With no hardware, simplicity reigns, contributing to decreased weight for high activity.
  • Odor and Bacteria Resistance: Benefit from the natural odor-resistant properties of merino wool, making the Tern perfect for travel, running, hiking, and everyday use. The ultralight weight adds to its versatility.
  • Better Shape Retention: the new Poly blend Tern fabric holds its shape exceptionally well for merino wool, even when wet.  It will stretch sufficiently without “bagging out” & becoming shapeless. 
  • Faster Dry Times: the Tern dries faster than typical merino wool blends.  This gives you better performance in high-output activities & will help you regulate your temperature better.

The natural odor resistant & ultralight properties of merino wool make the shirt perfect for travel, running, hiking, and everyday use.

The fit should be athletic, but not tight or restrictive- this allows the merino wool blend to more effectively wick moisture from your body.  There is no hardware, adding to the simplicity and decreasing weight.  The Tern is a high performance piece for high activity.

Whether shielding yourself from the sun on warm days or using it as a base layer for colder temperatures, the Tern Ultralight Merino Wool Tee offers unmatched performance. Elevate your outdoor experiences with a shirt that adapts to your lifestyle.

 

Specs:

  • Weight: 4.1 oz (size Large)
  • NEW Poly Blend Fabric: 115 GSM Merino Wool blend - 63% merino (18 micron), 29% polyester, 8% nylon, knit
  • Original Nylon Blend Fabric: 115 GSM Merino Wool blend - 58% merino (18 micron), 42% nylon, knit
  • Fit: Close
  • The Tern Tee should fit close to skin and fit easily beneath other layers.
  • Gender: Men's sizing
  • PFAS free

 

Features:

  • True Flat-Lock Seams
  • Raglan Sleeves
  • Excellent Stretch
  • Moisture Wicking
  • Bacteria/Odor Resistant
  • Quick Drying
  • Athletic Fit for Baselayer or Stand-Alone Layer
  • Holds Shape (even when wet)
  • UPF Rating 36+
  • Farm to fabric RWS (Responsible Wool Standard) certified wool by NuYarn™
Product Care

Your Tern Ultralight Merino Wool apparel is a high performance piece of gear. It needs some extra attention to keep it performing at the highest level.

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

Before Washing

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


The Wash & Dry Process

  1. Use a mild detergent like Dreft (for babies) or Nikwax (for technical gear).
  2. Choose Low Spin or Delicate wash.
  3. Choose Cold Wash & Cold Rinse (add extra rinse if possible).
  4. Hang dry until the product is completely dry.


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.

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  • Design Philosophy

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

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  • Live Ultralight Membership

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

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