Wool isn't just for the coldest conditions. Constructed of 100% lightweight merino wool, the Castelli Mezza Wool 9 Socks are as thin as your summer socks. The light weight traps heat, but more importantly, wool draws moisture away from your skin. This keeps you dry, which is the most important step in regulating body temperature.

• 100% lightweight Merino Wool
• 9 cm cuff