Toddler Flip Flops With an elastic strap in the back. Toddler flip flop sizes: Small (5/6), Medium (7/8), Large (9/10), X large (11/12) in a 1:1:2:2: ratio. Colors of these toddler flip flops: Black, navy, royal blue with fish, light blue with strips, navy with basketballs, black/green,light pink, white, light yellow, pink with butterflies, violet with hearts, light blue with flowers flip flops.