The Alpinestars MX Pro Socks are made from primaloft and bioceramic fibres for excellent moisture-wicking and breathability, and they have elasticated cuffs to prevent slippage and reduce material bunching. Arch and calf support bands improve performance fit and comfort with density cushioning on the heel, toe, insole and Achilles area for comfort and durability. The knee length sizing provides maximum coverage, plus, as an added bonus, these are anti-bacterial and non-odourous!