Men's HeatFX ULTRALIGHT Base Layer Long Johns Size:M UPF - 50+ rating to

UPF - 50+ rating to help protect against sun exposure

This microfibre base layer is made with HeatFX's innovative combination of fibres and provides superior warmth and comfort without bulk

Our famous heavy wool Henley is available in youth sizing

these briefs deliver exceptional comfort and durability for all-day wear

Experience the premium difference and stay cool

Men's HeatFX ULTRALIGHT Base Layer Long Johns Size:M UPF - 50+ rating toHeatFX's Ultralight fabric innovation is a combination of technically engineered fiber formations that provide superior warmth without bulk. Microscopic "pockets" inside the fiber create a thermal warming effect next to you skin. This fabric is designed with spandex to enhance fit, mobility, and moisture management. Keep your base layer selection simple. Take into consideration: Your Activity Level, Where You Will Be, and, How Cold You Will Get.