The material these shorts are made from are very lightweight. I was looking for something like this and actually these shorts turned out to exceed my expectations. I wanted something light and not take up a lot of room in my suitcase. I wear a size 36 and the size was spot on. I also play a lot of golf in hot humid areas and these shorts are great for hot weather. They might be a little to light for cool nights but that's what you buy pull-over pants for. I do agree with another reviewer that stated the pockets are not meant for heavy objects or keys. You can't expect to keep golf tee's in the pockets either. The pockets are a mesh like design that I believe are designed to allow heat to radiate out and not be captured close to the body. If you want something that looks good, is lightweight and packs easy then these shorts should fit the bill. I liked them.