Wigwam Merino Comfort Hiker F2322 Sock, Navy II - Medium One of our most popular styles, the Merino Comfort Hiker brings amazing long wear, durability and comfort along on any level trail you choose. 60% Merino Wool, 33% Stretch Nylon, 5% Acrylic, 2% Elastic (rubber) Features Merino Wool. Durable. Full Cushion No Itch. No Shrink Midweight designs are constructed with dense cushioning in multiple areas of the sock like shins and soles or the entire foot of the sock. Crew Length: A sock that extends beyond ankle length, but not beyond the largest part of the calf. Typically 9 in. to 12 in. in length. Lifetime Warranty USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.