Unfortunately I don’t understand this top, if you want a shirt that holds sweat and moisture for your entire session, then this is for you. I guess it’s a good concept in summer, as it will cool you down but in winter it simply doesn’t work. Tighter than a rash vest and sticks you like glue at any hint of moisture. Looks and fits great went dry and if you don’t sweat when working out or running then this top is perfect but if you are a medium to heavy sweater and don’t want to look like a drowned rat, then pick one of their other great products.