I think the construction is great, the areas of the body that need stronger reinforcement are there, shoulders, lower back and arms. This is great, the rest is a little thinner, so makes the jacket lighter and great for long tour days. My only thing I would improve is bring the drop-in pockets higher for next time, as I use this pockets for my skins for the way down, and they drop kinda low, so the backpack belt gets on top. I'm probably too picky, but I'm 5'9, use a Medium... and run into this. But love the lightweght.