The Seal Skinz Mid Knee Socks are mid-weight waterproof windproof & breathable making them ideal for keeping your feet dry & comfortable when additional coverage & an equal balance of warmth & breathability are required These waterproof socks have a durable outer & a merino wool lining for moisture control & comfort they also have a well elasticated ankle & instep & a Y-gore heel construction for excellent support & a great secure fit This mid-weight sock also has a padded heel toe & footbed to help absorb shock & guard against pressure & friction to reduce the risk of blisters making them great all round longer length waterproof socks