Happy Feet Men's and Womens OFFICIALLY LICENSED NCAA College Sneaker Slippers polyester ROBERT HERJAVEC SHARK TANK PRODUCT! FREE RETURNS & EXCHANGES, CLICK HERE ON MOBILE FOR SIZES AND INFO Indoor Slippers, OFFICIALLY LICENSED GIRLS AND WOMENS SIZES : Small - T12.5 - 5, Medium - 5.5-7.5, Large - 8-10, X Large - 10.5-12.5, XX Large - 13 and Up, Toddler Small - TS - T4-T7, Toddler Large - T7.5-T12 BOYS AND MENS SIZES : Small - T12.5 - 4, Medium - 4.5-6.5, Large - 7-9, X Large - 9.5-11.5, XX Large - 12-14, Toddler Small - TS - T4-T7, Toddler Large - T7.5-T12