What a horror, I bought 2 pairs, one for me, the other for my father, in both cases the difference was only in size. My dad used his every day, they lasted less than 4 months (both!). I used mine 3 or 4 days a week and they only lasted 5.5 months, 4 straps in that time, are you kidding me? Ah, and of course it's not 100% leather either!, as soon as they start to tear it's clear what an expensive piece of nonsense, seriously, hands off!.