Burvogue Sauna Tank Top,Neoprene Vest with Adjustable Waist Trimmer Size runs small, please refer our size chart to choose size instead of Amazon's size chart Lightweight design, comfortable and offers great performance on burn your fat and shaper your body; Interior pocket for iphone, mp3, android phone Helping you eliminate toxins, Maximizes and intensifies your workout by sweating your problem areas; works to heat up your back muscles to help alleviate any back discomfort The waist trainer vest for women is ultra-lightweight with a flexible fit, which makes it an ideal workout gear, speed-up the calorie burning process, and keeping your muscles warm and supported, preventing post-workout fatigue and injuries Design to make you Sweat like crazy and enhance your workout to achieve your weight loss goals; great for walking, running, jogging, or cardio; Great for women who desire to sweat more during your workout; lose water weight faster, and cleanse your pores and released built up toxins