Some people cut the handle off their toothbrush. They seek ever-lighter performance gear. They know the weight of everything they carry so they can go higher, further, faster. This sock is for them. The Superlight maintains our three-layer waterproof construction but strips away everything that isn&';t essential. Cushioning only where it&';s needed: heel and toe. The rest is streamlined to fit inside close-fitting footwear like trail runners and minimalist boots. Twenty percent lighter than the Classic sock, which adds up when you&';re covering serious distance.