We are calling this one the Perfect Tank, because it really is perfect! The length, the cut, the feel, the quality… it’s all fabulous! It’s nylon/spandex, super stretchy, washes amazing. We love it for watching sporting events, for summer days, for layering, even for workouts. It stays in place, feels cool to the touch, perfect on the sides, not low cut, pairs great with everything! I have a very similar lulu one, and this one compares in everything except price! True to size. S/M could fit up to a large, L/XL could fit up to 2X.