Castelli Distanza 20 SockCold weather performance riding socks with a casual design. The Castelli Distanza 20 Sock features a merino wool blend for an optimal combination of warmth and moisture-wicking properties. These socks have an arch support band for more comfort and a reinforced toe and heel adds durability where it is needed most. Lastly, a reflective stripe on the back of the socks help keep you seen in low light conditions. Features Winter-weight merino wool blendArch-support bandNylon heel and toe for durabilityReflective stripe on back20cm height SizingSizeSmall/MediumLarge/Extra Large2X LargeUS Shoe Size5-6. 57-1010. 5-13Euro Shoe Size36-3940-4344-47 | Castelli | Distanza 20 Sock Men's | Size Small/Medium in White