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Brynje Arctic Zip Polo Combat shirt  with zip polo neck, long sleeves with thumb grip. 100% synthetic mesh construction. Merino wool on the outside of the arm and shoulder. Developed with the Norwegian military to wear under a combat vest, but works great on trips with sled or heavy backpack.

Brynje Arctic Double is the warmest base layer in the Brynje range. Made to be worn as a base layer in cold conditions, or as a layering piece, this innovative mesh and merino combination delivers warmth and wicking performance when you need it.


An outer Merino layer of 220g/m2 combined with an inner layer of Polypropylene mesh. This traps air to keep you warm, while allowing your body to breath. Moisture vapour is  released through the mesh, and away from the body. This allows for excellent body temperature regulation in cold conditions.

This is a firm favourite with all who use it.

No other underwear achieves the same features in one product. Used by professionals, such as Military Special Forces, Fire Fighters, Police and SAR. Perfectly suited to all outdoor activity also. Best in test a number of times, and winner of textile innovation awards.

Technical specifications:

• 100% synthetic mesh lining
• Exterior of 80% Merino wool and 20% polyamide
• Weight: 240g
• Material Weight: Shell 220 g / m2
• Material Weight: net 140 g / m2