Craft's Active Bike Socks fall under its 'sport specific' category, meaning that they were designed to correspond to the needs of a cyclist's feet while in motion. The socks were constructed with a lightweight, high wicking polyamide blend, giving the socks a nice mid weight feel. With this composition, Craft built the socks to be worn in both fair and cold riding conditions. The socks have been channel stitched throughout, with ultra thin uppers, to allow warm air to circulate and cool down. The polyamide material was applied to the socks using Craft's 'bodymapping' technology as a means to target specific pressure points on the foot with varying thicknesses of fabric. Across the arch of the foot, a lightweight mesh was applied to increase ventilation. Additionally, arched ribs line the sides of the socks, making sure they don't shift while inside of your cycling shoes. Craft finished off its Active Bike Socks with wide Lycra cuffs and extra padding at the heel and toes for added comfort. The Craft Active Bike Socks are available in sizes X Small through X Large and in the color Black.