High performance boots meet your match. The Peaks RFL is an ultra lightweight ski sock that can squeeze into the tightest heat molded boot out there. No matter how aggressive the day is, the Peaks RFL's drop needle pattern technique keeps things smooth and light; which means you can hit the hill harder, faster, and longer, with a fit that's guaranteed for life. Made in Vermont, USA, where winter weather hits its peak. | Darn Tough Socks Peaks RFL OTC Ultra-Lightweight Socks in Tan | Size Medium