Treat yourself to carefree winter sports days with the whole family. The X-BIONIC® INVENT® 4.0 PANTS JUNIOR offers reliable thermal protection for young athletes on any terrain. The new 4.0 generation is the first to feature the Retina® ultra-high definition quality for unique accuracy of functionality. The exceptionally dense material is knitted on precision machines. Functional zones are seamlessly integrated and can act with pinpoint accuracy. The functional underwear has excellent insulating properties thanks to its roughened inner surface, is made of skin-friendly material and allows unrestricted freedom of movement. The legendary 3D Bionic Sphere® system ensures optimum thermoregulation of the chest and back with proven effectiveness. Sweat Traps® prevent sweat channels and additionally support the cooling effect. The ExpansionKnee at the knee joint offers optimum climate comfort and at the same time allows unrestricted freedom of movement. In the hollow of the knee, the AirCondi