Features： 1、Come with extender 3 hooks, three distance adjustment, can be adjusted according to the size of the chest. 2、Effective gathering the supernumerary breast, help shoulders back and stomach in, thin and breathable. 3、Open shoulders, improve chest sagging, and correct bad posture, good correction effect. 4、Correction of spinal curvature, correct and straighten the back, and present a curve. 5、There are 4 different sizes available, you can choose according to your demands. Specification： Item Type: Body Shaper Bra Support Material: Nylon + Polyurethane Function: Back correction and upright posture correction, supernumerary breast gatheringSize Waist Lower BustBra SizeWeight S60-70cm / 23.6-27.6in23.6-27.6in----32within 47.5kg M70-80cm / 27.6-31.5in27.6-31.5in32-36within 52.5kg L75-85cm / 29.5-33.5in29.5-35.5in34-38within 60kg XL85-95cm / 33.5-37.4in35.5-37.4in38-42within 65kg Package List： 1 x Bra Support 1 x Extender 3 Hooks