Lululemon Fast As Light Muscle Tank Color: heathered black Style Number: W1NISS Go ahead and sweat it out—we made this tank with anti-stink technology. Sweat-wicking fabric is four-way stretch added Lycra® fibre for stretch and shape retention features Designed for: Train, run Silverescent® technology: Powered by X-STATIC®, it inhibits the growth of odour-causing bacteria on the tank Lycra®: Added Lycra® fibre for stretch and shape retention Cross-back straps: For full range of movement