The MAAP Team Skull Cap is a thermal under-helmet cap for cold-weather riding. It suits riders who lose heat through the head and want a low-bulk fix that still fits inside a helmet properly. The thermal stretch fabric holds warmth while moving moisture off the scalp, and it covers the ears without adding enough thickness to upset your helmet fit. Flat seams sit where the helmet straps sit, so there is no rubbing on long rides. Key features Thermal stretch fabric with moisture management Low-bulk profile that fits under a helmet Full ear coverage Flat seam construction One size fits most Check your helmet fit with the cap on and adjust the cradle if needed. Machine wash cold.