Havaianas Kids Sereias Flip Flop (Toddler/Little Kid) 100% Rubber Rubber sole BR 17/18 = US 4/4.5 M, BR 19 = US 5 M, BR 20 = US 6, BR 21 = US 6.5 M, BR 22 = US 7 M, BR 23/24 = US 8 M, BR 25/26 = US 9/10 M, BR 27/28 = US 11/12 M, BR 29/30 = US 13 M, BR 31/32 = US 1/2 M, BR 33/34 = US 3 M Soft, cushioned footbed They float!