I've had a pair of these sandals for almost two years. I heard velcro can wear out. After half a year it got worse. Luckily Xero Shoes replaced them under warranty. These new shoes are doing well. Velcro looks a little better and I'll see how they hold up over time. When/if they wear out I will update this review. I went rock climbing last weekend and tested these shoes on some class 3 scrums near the crag. They performed better than expected. I was also happy with sprinting in these shoes. I hope this pair will last for many years!