Controlling sweat is good but taking advantage of it is even better. The X-Bionic Summerlight String distributes the sweat precisely where it belongs, namely, over a wide surface and directly on the skin which keeps the body's cooling system optimised. The runners need less energy for temperature regulation, and therefore performance ability and potential increases. If there is no sweat being produced, the action changes. Insulating air is stored and the systems serves to warm. Lighter than its big brother, the X-Bionic Energizer™, it still offers the same technology: Cools when you sweat, and warms when you freeze.
Weight: 20g approx for L/XL
Super comfy underwear for your adventure!