"The Smartwool Hike Light Cushion Crew Sock builds on a fan-favorite formula with recycled nylon, improved durability, and a better overall fit. A comfort welt keeps the sock locked in place at the top, so it stays put instead of sliding down mid-hike, and a women-specific 7in height is built to fit real trail conditions rather than a scaled-down men's design. ZQ-certified merino wool rounds out the sock with genuine sustainability credentials alongside the recycled nylon already in the blend. What Our Gearhead® Experts Are Saying:""I hiked eight miles without a single tug or readjustment, the welt just held everything exactly where it started."""