Delfin Spa Women's Heat Maximizing Underbust Racerback Exercise Tank &ndash; Petite thru Plus Nylon/FAR-Infrared Neoprene/Polyester Imported UNDERBUST DESIGN (open bust) and Racerback style allows full range of motion. Suitable for daily use. Can be worn under clothing if desired. FLATTERING FIT provides moderate compression; Meant to fit snug. Described as a Sauna Top. GREAT POSTNATAL TOOL to help re-shape your tummy & help you get back to that pre-baby shape! WARNING: Not recommended for use while pregnant. Please consult your doctor before purchasing. IFBB/FITNESS COMPETITOR? This is just what you need to shed water weight before a show! VERSATILE & WATER COMPATIBLE! Wear our tank on land or in the sea. Use for: General Exercise, Cycling, Spin Class, Cross Fit, Cardio, HIIT, Running, Zumba. YOUR FUN IS NOT LIMITED! Wear during: Water Sports, Surfing, Wakeboarding, Swimming, Paddle Boarding (SUP) or stay warm by wearing as a base layer during WINTER months & activities such as: Snowboarding, Skiing, etc. MATERIAL: Nylon outer, 1.5mm layer of Neoprene in middle & Polyester inner with embedded Bio-Ceramic material, which efficiently reflects your body heat to increase sweat! VENTILATION provided due to side panels made of ECO-FRIENDLY mesh (Cocona fabric). Excellent in moisture & odor management. DO NOT CLICK THE BLUE SIZE CHART LINK  ONLY REFER TO PHOTO OF OUR SIZE CHART FOR ACCURACY. Please measure yourself before ordering (widest circumference of breasts). In between? Choose the smaller size. Bust size in drop down menu (inches). Waist size on size chart photo.