For the Copper Allsport Quarter, ROHNER has focused their effort in research and development towards an innovative and special yarn: Cupron is a technological platform developed through the combination of a fibre with copper- oxide (CuO).

The result is a fibre with a large antibacterial and antifungal function. The use of such yarn in the ROHNER socks, provides a reduction of odours and skin issues in the foot area. Studies have shown a reduction of skin redness, skin cracks, blister formation, scales and overall irritation. It also kills and reduces the number of fungus in the foot area, that are developing during long sport sessions.