These jackets might be thin and not exactly showerproof, but they fit easily into a bag, pop on over jumper/jacket, fit really well and are surprisingly well made. I bought one for my eldest son as he rides to and from work on his bike late at night and was so pleased with it I bought 3 more - one for each of my children. My teenagers do not mind wearing them as they are cut nicely and have a handy pocket at back for ipod/phone. They also come down lower at back so ideal for bike riding. Very highly recommend.