I bought a pair of these flip-flops last fall for my son to wear on the mats for his Maui Thai and Jujitsu training. He is 6 and wasn't sure if these sandals could keep up with him! As it turns out, a year later, not only did they wear incredibly well on the mats, riding his bike, running, jumping, in and out of water, but he out grew the sandals and they are still in really good shape. I just ordered the next size up. I will pay a higher price if I can get both quality of product and long wear with just one purchase.