Everything is fine, I was ready for anything that would be small, but the straps are thick enough to stretch and everything is OK, I'm with a height of 176 and a weight of 90. Convenient behind your back, you don't forget that it is there at all, but put all sorts of little things and a folder in an A4 file, inside Korman with a zipper. Took in order to free pockets except for the phone and for moto bicycles.