The rubberized material that the bag is made out of feels heavy-duty to the touch and is rain repellant. If they had worn them they definitely would have ended up with blisters. ) I long for summers when my ugly sandals can let me by true self. These did not live up to the standard of quality you can usually expect from Havaianas. The lining is soft but not so bulky that it makes my feet feel hot. I love the sandals but they are a little loose. Each cubby holds ONE adult shoe. I wore this after eating and as you can see it does little to hold in the stomach. Ive been looking weight gradually due to an active job, I even put it on the looses fit and wear it to work some days when my back is giving me hell. The earbuds also connected easily to my HP EliteBook laptop.