I bought a size up from my usual size, after being advised that it might be a bit tight otherwise for leaping off those rocks etc. Been really great, bought 2 more of different colours. One of them had no belt though, not clear why as the other 2 had belts. Being zip offs makes them great, you take off on a hike in the early evening (with the compact legs in you backpack); and when its cooler latter and the insects are biting you simply re-attach the legs. They are not as heavy as jeans but seem sturdier, plus numerous pockets for all those bits & bobs. okay if you sweat as they dry off pretty fast, not tried them in the cold yet so not sure how they would hold out. No worries, even for the curvier bodies, they feel very comfortable and are great even for pottering about the house. The zipped off legs can be a bit long, simply fold them up and they stay put at any height of your choice.