Our role model: The Desert fox fennec. The desert fox, or fennec, lives and hunts in intense heat where it has perfectly adapted to the hostile environment. Success comes partly because its shiny silver fur reflects heat, and because it can release much of its body heat through its huge ears. This is the inspiration behind our X-BIONI C® Wüstenfuchs Technologie. The exclusive xitanit™ material reflects heat pounding down at you while distributing sweat across your skin to achieve an effective cooling process.