Everyday Wear Waist Trianers - gym, running, yoga, aerobics, jogging, hiking, walking, driving, postpartum recovery, weddings and brides, Social and banquet, housework, office. Protecting core muscle groups and reduce the risk of injury during sporting. No matter when you wear this waist slimmer, you can get about 3-4 inch waist line reduction instantly, make your body curve more attractive. You will be the focus of attention.