Meducal Shoulder Back Brace Posture Corrector Belt Adjustable Clavicle Spine Support Correct Posture Lumbar Posture CorrectionFunctions: 1.Muscle pain relief The coronal and lumber section of the frontal plane maintains the gravity balance of the body, reduces the burden on the muscles, corrects and relieves pain 2.The role of protection Wearing is comfortable and breathable, can be applicable to all including men and women, young and old, it can play a good role in correcting the back. 3.Easy to adjust and wear Universal size, easy to wear, without any help, you can take off and wear a pose corrector by yourself Note : size : S: Suitable Chest circumference 55-85cm M:Suitable Chest circumference 85-105cm L :Suitable Chest circumference 95-125cmPackage List: 1* Posture Corrector beltErgonomic design