SPANX Lounge-Hooray Tank Top The smoothing support of the Spanx Lounge-Hooray Tank Top will keep you comfortable and looking great all day long. SPANX Smart Stretch: waistband is comfortable, and offers 4-way stretch that enhances mobility. Reversible neckline: scoop neck or v-neck. Seamless fit. Smoothing support. 90% Nylon/ 10% Spandex.