These boots are a decent quality. I'm a size 12 and ordered the Larges. They aren't the narrowest boot (I sometimes sport 12w depending on the brand of the shoe), so if you always wear wide boots, these may be snug on you. The material is thin and breathable, and the soles on mine are comfortable. They do what they're made for- looking great as part of a costume. Would not suggest wearing them in deep water, or deep mud.