Memory Foam Slippers Medium- NAVY BLUE (fits M 7.5 - 8.5 W 9-10) Supports your arch Prevents heel shock by cushioning your every step Increases your stability by cradling your foot and preventing foot roll Relieves pressure on the ball of your foot, bunions, swollen feet and joints Medium = Men 7.5-8.5; Women 9.5-10.5