Innovation comes naturally to SmartWool. They started with the finest all-natural Merino wool and made it itch-free and washer and dryer safe. SmartWool uses it to make the most comfortable ski socks on the planet. Deliciously soft, exceptionally breathable and a natural, renewable resource. SmartWool woke the world up to a new standard in performance, comfort and sustainability. Dress like the pros and stay warm like the pros at Vail Resorts.