This is my second pair of FitFlops. My original pair had fabric straps that are tearing away from the leather medallion in the middle of the strap, so it was time to get another pair. The originals are probably only about a year old, but I wore them every day because I use them in the house as slippers (yes, they are that comfortable). Since I had this problem with the strap, I decided not to buy the same style again, and opted for the style with all leather straps instead. The all leather straps are definitely more sturdy than the fabric straps. As with the original pair, I wear them every day in the house. I can't confirm if the shoes actually improve the muscles in your legs or not, but they are definitely very comfortable! I'm sold on FitFlops!