This pair of high shock impact-absorbing Sorbothane Full Strike insoles will fit sports shoes with a UK size of between 11 and 12.5.They are used to protect the whole foot and to minimise the risk of joint injuries and pain in the back and legs. Each insole can be worn over the top of a standard insole or used to replace it, and it will provide excellent protection during high stress activities such as football, rugby or running. This is the largest size in the range.