Diamond Synergy Forskolin To read: 10 ideas of exercises to firm up your belly . Importance of choosing the right size for better comfort and satisfactory results. Do not use its sheath more than 12 hours a day. My opinion on the slimming sheath A slimming sheath can help you refine your silhouette, firm your stomach and burn fat. On the other hand, it is important to follow a healthy lifestyle in addition for better results. It is also essential not to exceed 12 hours of daily use to avoid pain or other health problems. Thus, if you combine sport, healthy eating and wearing a slimming corset a few hours a day, you will be able to get a slim fit quickly.