Copper Infused Support Compression Socks 20-30mmHg Graduated Calf socks UK. L/XL L/XL 8.0-18.0"/20-46cm 23.0"/59cm. Copper Infused Support Compression Socks 20-30mmHg Graduated Calf socks. Unisex Compression SocksPerformance Compression Socks Graduated Supports.