This sock is packed full of fantastic features to ensure your feet are the last thing you worry about on your hike. The PhD® Outdoor Crew Sock offers a great fit and outstanding comfort. These durable socks feature Indestructawool™ technology which enhances the socks in high wear areas ensuring your sock performs better for longer. The 4 Degree® elite fit system ensures the sock is snug to the foot fit whilst the Virtually Seamless™ toe provides extraordinary comfort in any trail shoe. These socks have medium cushioning which provides impact protection and great comfort when your feet are working hard out on the mountainside.