Trek Circuit Road Cycling Shoes Shoe size:42 The optiFOAM² midsole promises soft

The optiFOAM² midsole promises soft landings and an added bounce to your stride

with flexibility to minimise soft tissue pressure

so that a high pedaling comfort is possible

speed-centric tongue lays flat against the foot

on-the-fly micro-adjustability for a precision fit Dual Li2 BOA dials provide low-profile

Trek Circuit Road Cycling Shoes Shoe size:42 The optiFOAM² midsole promises softEveryday comfort. Revolutionary fit. Trek Circuit is made for comfort and on bike efficiency. Whether you're crushing a quick training ride or ticking away the miles on a century, every pedal stroke will feel as good as the first. A more relaxed performance fit and METNET relief zones provide superior comfort, a stiff outsole and BOA fit system deliver great pedalling efficiency, and 2 and 3 bolt cleat compatibility add versatility. Product details