Focus T-Back Breathable Exercise Yoga Fusion Cami Great for your workouts and yoga as well as a casual tank top. Built-in shelf bra. Great tank for layering. Fabric is Microfiber Nylon and Spandex. Has petite ribbing that provides light compression. Adjustable straps. T-back design for maximum range of motion. Sizes: Small fits bust 30"-33" around, Medium fits bust 33"-36" around, Large fits bust 36"-38" around.