My favorite trail shoe is the non waterproof altra lone peak 3.0. I couldn't get a good fit in the 3.5. I have a new pair of 4.0, which feel great, but the fabric and construction seem to differ significantly from the 3.0. I've got about 50 miles on them and they seem OK. However, on the some websites the reviews have a number of reports of premature failure, including delamination. In planning for a through hike in 2020 I'd like to pick up an extra pair, but I'm unsure about this. Any comments on 300-500 mile durability for the 4.0?
thank you