For you to get the most out of your training, we continue to innovate to enhance every rep. Heavy Rep Gear socks are engineered with cushioning throughout the sock for a more secure, comfortable fit with greater impact protection. They have a mesh knit on the upper to aid ventilation. For you to look good, feel good and perform well in your training; we continue to innovate to create the most stylish socks in fitness. Size UK US EU Small 3 to 5 3. 5 to 5. 5 35 - 37 Medium 5. 5 to 8 6 to 8. 5 38 - 42 Large 8. 5 to 11 9 to 12 43 -46