The Tern Ultralight Merino Wool Shirt is a hot weather top (also great as a base layer in cold weather) that has excellent moisture wicking, comfort, sun protection, & quick drying abilities. It's odor and bacteria resistant, with adequate durability for the ultralight weight.
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.
The natural odor resistant & ultralight properties of merino wool make the shirt perfect for travel, running, hiking, and everyday use.
Use the Tern on warm days to shield yourself from the sun without overheating, or use it as a base layer in colder temps and take advantage of the merino wool next to skin.
We offer both a long sleeved hooded option (which works well as a sun shirt) and a short sleeved T-shirt option.
Hoodie (Men's L): 5.4 oz
T-Shirt (Men's L): 4.1 oz
True Flat-Lock Seams
Minimal Clean Collar Hood
UPF Rating 36+
- Fabric: 115 GSM Merino Wool blend - 58% merino (18 micron) / 42% nylon, knit
- Fit: Close
- The Tern hoodie or T-shirt should fit close to skin and fit easily beneath other layers.
- Gender: Men's sizing (see product images for how the Tern fits women)
Care: This product is built for ultralight performance, & was not built to withstand abrasion.
Do not wash in a machine that has an agitator. Use mild detergent on a delicate cycle with cold water. Hang dry.
Note: If used with a backpack, some pilling may occur. Pilling will not affect performance, & is not covered under warranty.
Warranty: Outdoor Vitals Performance Promise
Layering Collection: Kinetic
Outdoor vitals uses Nuyarn® Technology in all of our merino wool fabrics & apparel. Nuyarn is a spinning technology that releases the natural performance characteristics of wool fiber that are otherwise twisted out by traditional wool spinning methods.
Essentially the result is performance products made from natural fibers that can outperform synthetics.
Nuyarn can make wook that performs as closely as possible to the way it does in nature, to rival or exceed the performance of synthetic alternatives.
Types of Spinning
Ring Spun & Traditional Core Spun techniques compress the natural air pockets in the fiber, create loops, & restrict the natural movement of the fibers -essentially creating a rope-like structure that can be itchy next to skin.
Nuyarn® does not twist the fibers. Instead it drafts merino fibers along a high performance filament, resulting in 2 ply yarns with much more volume & aeration. (This 2 ply yarn structure is 35% finer than yarns spun on a conventional ring frame. Combined with the Nuyarn® thermal advantage, this offers the capacity to engineer much lighter, high performance fabrics as a result.)
The Nuyarn® method of twist-free spinning allows us to create products that outperform traditional merino wool & synthetics, and offer a natural enhancer to athletic performance.
- 5x Faster Drying
- 85% More Elasticity
- 120% More Seam Strength
- 53% More Air Resistant
- 30% Less Resources Used
- 8.8x More Durable
- 35% More Thermal Retention
- 50% More Burst Strength
- 25% Less Energy Used