Men's merino base layer Bergans Inner:Dual Merino Half Zip Men Elemental Blue / Dark Shadow 2026

Inner: Dual Merino Half Zip is a high-tech thermal garment made from merino wool, designed for maximum comfort, warmth, and elasticity for any mountain adventure. The men's top is crafted from a fine blend of merino wool, polyester, and polyamide, combining the unique properties of merino wool with the durability and longevity of synthetic materials.

After several years without a specialized thermal underwear line to succeed the bestselling Fjellrapp, Snoull and Akeleie, Bergans is introducing the brand new Inner: series starting in 2024. This series features lightweight, warm tops and bottoms crafted from fine and very pleasant-to-the-touch materials. The Inner: series includes several options:

• Inner:Lightweight - breathable thermal underwear sets designed for summer adventures in the high mountains.
• Inner:Heavy - Designed for the coldest months of the year.
• Inner:Dual - Double-layered thermal underwear that combines merino wool with synthetic materials, which extends the garment's lifespan and allows it to be worn by individuals with skin sensitive to wool.

The construction of the men's thermal top Inner:Dual Merino Half Zip consists of two layers:

• An inner fine layer made of polyester.
• An outer layer made of merino wool and polyamide.

This design not only enhances thermal insulation by creating an air pocket that prevents heat from escaping your body into the atmosphere, but it also ensures you stay dry even during intense activities. Any moisture generated is transferred from the inner layer to the outer one, where it is released outside.

Merino wool has the ability to regulate body temperature and adapt depending on the intensity of physical activity, making it an excellent material for clothing designed for hiking, running, and cycling. During longer routes, athletes go through different stages, and this is particularly noticeable on uneven terrain with frequent changes between ascents and descents. The varying terrain requires different paces and levels of effort depending on the trail's profile. Merino wool does not retain unpleasant odors and continues to provide warmth even when wet, which is inevitable during intense workouts.

This Bergans model also features a long chest zipper for additional temperature regulation.