Very hot in even fair weather. So many pockets it is easy to forget where you stash stuff. When you travel it marks you as an operator wannabe or an old German tourist. Unless you are attempting to conceal an H&K MP5 there are cheaper and less conspicuous alternatives. Poor quality. Way overpriced. Wore one on my first trip to Africa. 2 zippers broke. Has not been out of the closet in 10 years.