The Kilpi ULTRA-U socks offer climatic comfort to cyclists, runners or other active athletes thanks to the elastane knit, synthetic fibres and seamless structure. The thin and breathable material is ideal for intense sporting activities in summer or spring. Carefully positioned functional zones offer support and necessary 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 metatarsal area is reinforced with a double knitted, abrasion-resistant knit. The height of the socks is above the ankles. There are several colour options available to choose from.