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The human body functions optimally at its preferred temperature of 37°C. It consumes the least energy, and is effective and durable. To guarantee this preferred temperature even in hot environments, nature provided man with a highly efficient air conditioning system: sweat. X-BIONIC® Underwear supports this natural air conditioning system, harnessing the cooling function of the sweat film instead of allowing it to dry up like traditional active undergarments.
We learn from nature here.
At the same time, X-BIONIC® Underwear offers effective thermal insulation to prevent overcooling when the sporting is finished. This is the first article of clothing to effectively cool when you sweat and heat when you're cold.
And that's where we leave nature behind.
X-BIONIC® is a revolution. Can be worn like underwear, better than nature, and designed with the demands of sport in mind.
Keeps you warm when you're cold, cools when you're sweating. Shivering and sweating are the body's methods of maintaining its preferred temperature of 37°C - but they both consume energy. Supporting your body when you sweat and protecting it against freezing improves your ability to perform.