I will start off by saying it is a useful and elegant edition to any sort of sports-wear wardrobe. It's useful for HIIT and resistance training when you want to sweat more. Also highly useful for running when its too cold to just wear a t-shirt but too hot for a thick, extra layer. The material itself, however, is unfortunately quite thin, making it useless for when it is cold in the gym or outside. It is also very baggy and looks awkward for casual wear. It is pricy at base price, but at sale price could be a sensible purchase.