Focus. Focus. Focus. Our versatile Cool Racerback tank, powered by Nulu™ fabric, has a contoured fit so it stays put (and out of your way). nulu™ Lightweight, buttery-soft Nulu™ fabric wicks sweat and is four-way stretch buttery-soft handfeel lightweight sweat-wicking four-way stretch features Designed for: Run Lycra®: Added Lycra® fibre for shape retention Mobility : Racerback cut for full range of movement Tight fit: Lets you move without restriction Excellent condition, no flaws. No size tag but measurements are that of a 0.