Available in three standard sizes that can be trimmed to fit your ideal shoe size, these gel cushions absorb shocks and help relieve tired aching feet.,,S : Euro 37-39, UK 4-6, US 5-7 ,M : Euro 40-44, UK 6.5-10, US 7.5-11,L : Euro 45-47, UK 10.5-12, US 11.5-13,