The x alp enduro offers award winning x alp performance comfort and with the security of a ratchet buckle system and the versatility of our ground breaking x alp bottom 11 anatomical buckle closure system reduces hot spots and removes pressure from your instep low cut construction for a light fast fit and feel quick drying highly breathable meshsynthetic upper delivers comfort and breathability eva foam run shoe midsole for off the bike cushioning and comfort carbon rubber lugge