i ordered 7.5 the first time because my nike and saucony that size 7  was a little tight but i change it to 7 because  7.5 is too big.but now this 7 is still big,and i cant change it again.i guess im only allow to change once? so i just have to return and buy again.it's hard to buy online...you can't try how it fits,next time i'll just buy at the store.