UpSpring Shrinkx Belly Postpartum Wrap with Bamboo Charcoal Fiber(only been used very few times) Shrinkx Belly Bamboo Charcoal Wrap combines cutting edge bamboo charcoal fiber technology with triple-point compression to help you lose inches, shrink your uterus and slim your figure. The adjustable compression and therapeutic bamboo charcoal fiber work together to increase circulation and speed recovery. This slimming belly wrap improves circulation, customizes compression and slims belly / waist. Also good for lower back support. OBGYN recommended for post-partum recovery (C-section or vaginal delivery).