The Kilpi ULTRA-U socks offer climatic comfort for any outdoor activities or less demanding sports, thanks to the knitted fabric made of elastane, synthetic fibres and a seamless structure. The soft and warm knit is ideal for intense sporting activities in summer or spring. Carefully positioned functional zones offer support and much-needed comfort. The wide elasticated top hem does not compress or hinder blood circulation. The fixation hem around the ankle stabilises the position of the sock. The heel, toe and joint area is reinforced with a double knitted, chafe-resistant knit. The socks are above ankle height. The Kilpi ULTRA-U is available in several colour options.