Bought the red pair in size 5.5 for cosplaying Supergirl and Captain Marvel. Everybody else said they ran a bit small so I figured they wouldnt fit because I normally wear a 6.5 but they fit perfectly so I guess for my foot shape or whatever they ran slightly big. They are comfortable even after all day on my feet at a con. The only issue is that they don't have a ton of traction and can be a bit slippery and the material isn't great for if its raining out.