Description The Merino Wool content helps regulate foot temperature, is high wicking and is anti-microbila, keeping you feet fresh and comfotable. Produced with LYCRA® SPORT fibre to ensure a close, comfortable fit. Socks designed and manufactured by HILLY, the UK's premier technical performance sock company for runners – founded by Ron Hill. Produced with LYCRA® SPORT fibre to ensure a close, comfortable fit. Socks designed and manufactured by HILLY, the UK's premier technical performance sock company for runners – founded by Ron Hill. Synthesis yarn of merino wool and polyamide provides comfort, temperature regulation, high moisture transfer and durability Cruelty free Merino Wool – temperature regulating, high wicking and anti-microbial LYCRA® DRY TECHNOLOGY provides long-lasting fit with quick-dry comfort Med-level cushioning in key pressure zones for optimum comfort ouble terry loop cushioning for all day comfort and durability Reinforced toe box to avoid holes & blow outs when descending Close fitting cuff with extended depth to prevent debris entering the sock Flat toe seam construction SIZE GUIDE – HILLY SOCKS Please use the chart below to determine your sock size. Small Medium Large Extra Large UK 3 – 5.5 6 – 8.5 9 – 11.5 12 – 13 Euro 35.5 – 39 39.5 – 42.5 43 – 46 47 – 48.5 USA Men 4 – 6.5 7 – 9.5 10 – 12.5 13 – 14 USA Women 5 – 7.5 8 – 10.5