Lululemon Cool Racerback I| Nulu *Game Day Game Day Blue Multi No size tag. Please see measurements in pictures Focus. Focus. Focus. This versatile racerback tank has a contoured fit so it stays put (and out of your way) during workouts nulu™ Lightweight, buttery-soft Nulu™ fabric wicks sweat and is four-way stretch • buttery-soft handfeel • lightweight • sweat-wicking • four-way stretch