Multisport Base Layer Redesigned for versatility and all-day comfort, the WYN Multi-Sport Base Layer takes everything you loved about our original Thermal Base Layer and elevates it with athlete-driven updates. Built for cold-weather training and racing, it delivers breathable, next-to-skin warmth without the bulk, keeping you powered through rides, runs, and outdoor adventures. Updated performance details include Thumb holes for a secure fit Watch access openings on both sleeves (left and right) for seamless tracking Straight-cut hem that sits evenly around the waist to reduce riding up—perfect for wearing tucked or untucked. Combined with the soft fleece lining, moisture-wicking properties, and stretch fabric, this technical layer is engineered to move with you in temperatures from 5–15°C (40–60°F) while maintaining comfort and freedom of movement across disciplines.
