With a precise anatomical design and blended merino construction, the Ski Ultralight OTC Horizons is a go-to ski sock for those looking for lightweight performance and support while riding the lifts or touring the backcountry. Our Ski sock construction features sculpted cushion and critical support zones in the Achilles, ankle and instep for optimal fit, stability and comfort. The reinforced heel and toe areas improve durability, and the seamless toe closure reduces bulk and helps prevent blisters during long days on the mountain.