I went through 2 sets of nylon straps before I decided to get some leather. The first set of straps ripped going downhill and scared the **** out of me. The second set ripped when they got really wet as I was riding home in a rainstorm. This time I was on a flat surface, but it still annoyed me so I decided to get something stronger. I hate buying leather, but I felt it would keep me safer until I get enough funds to buy clipless.