I bought a pair of the Scarpa R-Evo Gtx after trying them on in the shop, they seemed comfortable out of the box and the fit seemed good, boy how wrong was I. My first walk in them was one of perhaps 5 miles, I was nearly crippled by the end of it, it was honestly like walking on glass, my feet were just so constricted. Don't know whether it had anything to do with the 'sock fit' technology but it has put me off Scarpa's ever since, an expensive mistake.