Sometimes time is so short that it's not possible to stop to remove layers; having a flexible and effective solution is paramount. Made from the same material as our high-performance socks, Armforce Ultralight sleeves are extremely lightweight and comfortable. Thermoregulation is the number one asset; a critical property when temperatures drop. Light compression supports the muscles of the biceps and forearm and stimulates blood circulation to keep you cool before, during and after sport. Particular attention has been paid to the elbow crease, where a lighter weave ensures both effective ventilation and exceptional freedom of movement. Finally, our 3D Dots are placed on the forearms to improve blood circulation, but also make excellent sweatbands to wipe sweat from the forehead as intensity increases. Wear these blue support sleeves on the trail, on a bike or for anything else. Size T1 (S) CM 22-25 inches 9-10 Size T3 (L) CM 28-31 inches