Most fans of wool products know that the various versions, weights, and blends of the natural fiber can be worn year-round, but others may be surprised at the effectiveness and capabilities of wool fibers in warmer weather. If you love the feel of Merino wool socks and want to wear them all year, look no further than the low-bulk, high-performance Merino Air Sock from Pearl Izumi. The premium Merino wool blend wicks moisture with ease and is naturally antimicrobial, so your feet stay dry, comfortable and funk-free. A 360° tension band around the arch provides a secure, smooth fit that is ideal for close fitting cycling shoes, while to the front and rea of that band, a more mesh-like knit ensures maximum breathability and moisture release from the skin. The heel and tow zones are knitted to deliver less stretch, more structure and durability in these potential high friction areas. The 7" cuff height is modestly tall by today's standards, but for many it is the best option between a 4" model that covers the ankle and a much taller option that hits the calf. In our experience the 7" height tends to stay in place more consistently.