360 seamless design with density tight knitting and super stretchy fabric works to flatten the stomach after birth and gently smooth the mommy pouch. All day wear waist trainer suitable for gym, running, yoga, aerobics, jogging, hiking, walking, driving, postpartum recovery, weddings and brides, social events and banquets, housework and office. It supports core muscle groups and helps reduce the risk of injury during activity. Invisible under daily clothing. This belt tightens and smooths the belly, eliminates muffin , and pairs with any outfit for a slimmer tummy appearance. Truetosize shapewear that reduces the waistline, firms the tummy and flabby fat, and leaves no lumps or bumps. Creates a flattering hourglass silhouette with a hook and eye closure for secure fit. Practical use scenarios During workouts and active days: wear for core support and shaping while at the gym, running, yoga, or hiking. For everyday outfits and events: wear under work clothes, social gatherings, or formal attire to achieve a smooth, slim silhouette. Postpartum and special occasions: ideal for postpartum recovery and for weddings, banquets, and other events where a discreet, comfortable shaping under clothes is desired.