The Falke RU4 is a high-performance running sock. The sock is lined from the heel to over the toe with terrycloth for optimal shock and moisture absorption. In addition to cotton, polypropylene is used. This is a smooth fiber that does not absorb moisture, is strong and provides little friction to the foot, preventing skin irritation.

Falke RU4 Cushion

The Ergonomic Sport System, to which the RU4 belongs, distinguishes between women's and men's socks. These socks are primarily used during running. The RU4 meets all requirements in terms of a cushioning function and dynamic stability, and is therefore a widely sold running sock. The 'cushion' system provides extra cushioning.