We purchased a dozen of these shoes in various sizes as bridesmaid gifts for my daughter. I discovered three pair still sitting in my basement 100% Cotton Imported Rubber sole Heel measures approximately 2" Platform measures approximately 1.5 inches inches Superga sneakers tend to run slightly large. They recommend sizing down by 1/2 size. Outsole is 100% natural rubber I think the left shoe is slightly less white than the right shoe. I couldn’t get it to show up really well even when I put them outside in the bright sun to photograph and probably not noticeable when wearing. But I could tell a slight difference when the shoes are side by side