The ULTRAZ WINTER SOCKS P1 winter cycling socks have everything ASSOS has to offer in terms of thermal insulation in socks.

Three layers of highly functional thermal yarn keep your body warm. At the same time, high breathability ensures that excess heat can escape. The processed MERINO WOOL can develop its warming properties even when damp and also has an odour-inhibiting effect.

Warm feet – even on intensive rides in winter!

MERINO WOOL: Compared to traditional wool, Merino offers a particularly fine fibre. Because of the extreme weather conditions merino sheep are exposed to in nature, the wool has strong thermoregulation properties and is capable of wicking moisture away from the body particularly fast. Thus, it creates a warm protective layer for the entire body, even when wet. In contrast to traditional wool, merino wool is not scratchy even when wet. Thus, merino is perfect as a next-to-skin layer. Yet, merino wool is also ideal for warm summer days since its high breathability has a cooling effect. Thanks to a natural sun protection factor, high comfort and fire resistance, merino wool is a very popular fibre.

160-NEEDLE DESIGN: This design seamlessly wraps around the foot with a light compression. This prevents slipping and constricting.