The sock for people who love wool, and experience a sensitivity to it, the Le Bent Core Light Snow Sock is a blend of bamboo rayon (44%) paired with 19% merino wool, with nylon and elastane for durability and memory stretch for an incredibly silky knit fabric with all the feels combined with Le Bent's Definitive fit system for a better fit, and strategic technology.. for a better ski sock. Elastics and strategic stitching provide targeted support in all the key areas, from the Y heel construction to the arch support for a secure, snug, no wrinkle precision fit. A sock that molds to your foot every time you put it on and provides shin padding, a stay up cuff, and impact zone protection for your tender toes, this sock is a great choice for the downhill skier starting to do some transitioning into the side or backcountry experience. It will take the twists and turns all day and give you foot protection for short distance kick hill climbing. A nice weight for the recreationally fit boot, a nice density for extra warmth without being too thick for a comfortable boot fit, for the skier uncomfortable with the full merino wool sock, but looking for a natural fiber alternative to synthetic, the bamboo rayon of the Core gives you a durable, wicking, and breathable natural fiber sock, with a touch of merino wool for added warmth.