Perforated Precision. Mapped Warmth. Made to Move. Crafted for high-output days in cold conditions, the Calvin Mitt combines rugged performance leather with breathable perforated accents for all-weather versatility. Inside, the Tri-Plex HDT insulation system is mapped for performance-PrimaloftA(R) Grip and Dyna-Therm lining in the palm for sweat-responsive warmth and control, and a 170g PrimaloftA(R) layer with SwanyDry lining on the back to seal in heat. A DryfingerA(R) II insert keeps moisture out, while the Utility Heat Pocket lets you adapt on the fly. Finished with a suede nose wipe, adjustable tab closure, and Hudsen Leash for all-day security and comfort. Ideal for: Freeriders and mountain pros who need serious warmth without giving up dexterity.