Back Brace Posture Corrector Adjustable Back Support Men Women Shoulder Belt Material: Neoprene,Elastic,Mesh Colth Size: free size fits for most people Color: Black About the size: Size S for waist size 60-85cm; Size M for waist size 85-95cm; Size L for waist size 95-105cm; Size XL for waist size 105-115cm; Size XXL for waist size 115-125cm; Posture Corrector Back Support BeltFunctions: 1.Great for office persons 2.Supporting design helps correct poor posture 3.Pulls shoulder back to correct posture 4.Provides gentle back support 5.Prevention of adolescent customary humpback & bend down 6.2pcs steel contact the spine & lumber region 7.Non restricting uni-sex design for men and women 8.Fully adjustable, comfortable & easy to wear