Bought a pair of Mammut walking shoes for my husband. He has had Mammut shoes before so I ordered the same size. Unfortunately they were too large but the great thing is that you can buy half sizes online which you can't do in many stores. Had to return and get a smaller size. This was dealt with very efficiently. I was informed that they had received my parcel and also when the replacement had been despatched and when to expect delivery, I would certainly recommend purchasing items from Rock and Run.