Well, 3.5 years on my Scarpa Triolets and they are just about slicked off and some stitching is starting to fail. I use these boots every day, so happy with the longevity. I would by another pair, but can't seem to find them at a discount price (paid $238 for current pair). So now I am looking at Grand Dru, but also curious about La Sportiva, Mammut, Zamberlan. Any input....or anyone with NIB 42.5 Triolets? hahaha