We love the Archer footie sock. They are extremely comfortable and made of one of the best yarns in the world: LINEN. They are non slip and also have the support elastic arch so they adapt with every step. Linen is a biodegradable textile with the following benefits: Thermo-regulating: keeps the body at a constant temperature, warm in winter and fresh in summer Breathable: the larger weave allows the skin to breath Resistant: it does not distort and it does not need any particular care Soothing & anti-inflammatory: on reddened skin