First and foremost great fit of the product. Came packaged nicely. Fit is exactly as the size chart said. Extremely comfortable. I wear this over a tanktop over 8 hours a day. The key is to not start out too tight but gradually as to not have any health issues and allow the waist to cinch effortlessly without any hassle and this product does it. Ordered the 2XXL based the the companies size chart NOT AMAZON'S. The chart is in their images before anyone buys measure yourself! Looking to purchase the XL now since I currently fit the XXL and would like to go tighter. Love the boost it gives my bust and the flattening it does to my back. I wear this under my work shirt and you can't even tell. Very comfortable!!!