The Kilpi NINJA-U is a multifunctional base layer for active athletes. It is made of a highly elastic knit with OPTI-DRY function, which makes it lightweight, breathable, quick-drying and effectively wicks moisture away from the skin. The seamless construction and snug fit adapts to and follows the curves of the body perfectly. The biggest highlight of the underwear is the snug hood that collapses into a high collar that can be worn as a polo neck, face mask or hood. The seamless hood does not press under a helmet, making the shirt also suitable for cyclists, skiers, ski mountaineers or climbers. There are several sizes and colours to choose from.