X-BIONIC Invent 4.0 long sleeve base layer

Equip your young adventurer for any season with the X-BIONIC Invent 4.0 base layer. This high-performance shirt masters changing temperatures, ending the uncomfortable cycle of sweating and freezing. The patented 3D Bionic Sphere® System intelligently cools during activity and insulates during rest, maintaining an optimal core temperature. Integrated Sweat Traps® and air channels keep skin dry and comfortable, while the lightweight, anatomical fit ensures total freedom of movement. The ultimate thermal foundation for any sport