Thanks we bought 2 arm cast covers for my daughter as she broke her arm 10 days before going to Turkey on holiday! They were fantastic she is 12 and a fantastic swimmwer she was able to jump in swim in the sea and pool under water all day long for 16 days with cast cover on we just had to change first one 3 days before the end of the holiday. It was 40 degrees out there so you can imagine if she was not able to swim or shower ...thanks so much. Denice Siney.