Assos Ultraz Winter Socks P1The Warmest Socks in the Range Ultraz Winter Socks are Assos's most insulating winter socks, made for the coldest rides. Triple-layer construction around the toes and midfoot holds heat, and merino wool in the yarn keeps feet warm even if water gets into your booties. The tall cuff tucks under tights or leg warmers so there's no gap at the ankle. Features Triple-layer construction at the toes and midfoot, the most insulation where cold gets in first Synthetic and merino wool blend, warm when wet, with natural odor resistance and stretch-and-return Cuff up to 7", a tall cuff that overlaps tights and leg warmers160-needle seamless knit, no seams for cold air to find, with light compression for stable support High breathability, keeps moisture from turning into a clammy chill SPECIFICATIONSIntended Use Road Cycling, Winter Riding Cuff Height Up to 18cm / 7in Material45% PL, 32% PA, 20% Wool Temperature Range4degC to 11degC / 39degF to 52degFInsulation Triple-layer at toes and midfoot Available Sizes Size0 (EU 35-38)I (EU 39-42)II (EU 43-46) | Assos | Ultraz Winter Socks P1 Men's | Size Medium In Black Series