Featuring Sealskinz own waterproof & breathable stretchy membrane these socks have an anatomical shape & hug your foot so they can worn just like regular socks. The elasticated instep & Achilles panel hold your foot providing support & comfort. Lined with Merino wool to increase comfort & wicking performance. To maximise the performance of these great socks you need to have a close fit, so please check out your size below. If the weather is really freezing you can boost the performance of these socks with the Seal Skinz thermal liner socks. Totally waterproof, breathable & windproof. Our lightest sock, ideal for warm, wet days. Merino wool lining for moisture control & comfort. Elasticated ankle & insteps offer support & a comfortable fit. Sealskinz Thermal Rating: 2 out of 5