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Durability is ok. I do pretty decent mileage throughout the year, anything from long xc rides to dh runs. The soles are fine beyond a row of holes where the pins dig in. Still grip well. I managed to snap the finger loops on the tounge putting them on, and the neoprene sick looks a bit sad now though still works. Hoping they'll do another two winters/18 months before needing replacing. And you do feel it if you whack a rock/root riding.
Second vote for trailcross. Have the high top version for a couple of years and find they work well whatever the weather. Grip well and just don't notice them when riding.