Ive been buying Merrels size 13 for years now, but never this style. They fit like a 14, be warned. The back isn't as high as it looks either. More like a sneaker slipper. Very comfortable, but smell like a jungle rubber factory. I guess thats better than sweaty foot odor, but not looking forward to the combination - if I even wear them that much. Will stick to the Moab Vents in the future, love those ones.