Spanx > Thinstincts Tank Size 1X Breathable, moisture wicking and absorbent —Thinstincts® is the perfect smoothing, lightweight layering piece. Step in to put on. Micro-fiber offers lightweight, breathable feel. Non-compression bust offers a smoosh-free fit. Bonded armholes and hem for added comfort Elastic-free – no pinching. Body: 53% Elastane, 47% Nylon. Bust: 78% Nylon, 22% Elastane Excellent Used Condition.