I've been a Kinvara wearer for years, but I've been noticing -- and this could be because I've bought Kinvara 6s on clearance for my last few pairs, and the materials might have degraded sitting in a warehouse since they were manufactured a few years ago (is that a thing?) -- that they wear out much faster than they used to. I'm not running high mileage at all right now, and I haven't gained any weight. Maybe it's just me and my shitty biomechanics and not the shoes, but has anyone else felt the same way about their Kinvaras? They're obviously not a heavy-duty shoe but I feel like they used to last me much longer on the same amount or more weekly mileage... or I was just less of a wimp about starting to feel aches and pains with worn out shoes.
Can anyone recommend a similar shoe that is a bit more durable?