Size Chart: 

S - Chest circumference: 46-68cm/18.1-26.7inch
Suit for weight: 20-40KG

M - Chest circumference: 68-91cm/26.7-35.8inch
Suit for weight: 40-80KG

L - Chest circumference: 91-119cm/35.8-46.8inch
Suit for weight: 70-100KG

XL - Chest circumference: 119-140cm/46.8-55inch
Suit for weight: 80-120KG

Specifications:

1. Name: Back shoulder posture corrector 
2. Material: Cotton, Neoprene
3. Applicable Scene: Habitual camel back, high and low shoulder, shoulder joint pain, arthritis, acromion joint loosening, clavicle fracture, clavicle dislocation, scapular fracture and so on

Features:

1. Take a weight off your shoulders.
2. Realign your vertebrae to their proper position.
3. Relieve upper and lower back pain, neck pain.
4. Reduce slouching, hunching and slumping by corrector your posture.
5. Recover mobility and strengthen the muscles.
6. Reduce stress and bring more calm into your life.
7. Look more confident and give people a good impression.

About the Product:

1. Back Posture Corrector with breathable and latex-free adjustment strap.
2. Shoulder Support Brace Pull back your Upper Back to the right position. And then improve your whole body posture during work or life.
3. You can use it not only when you are sitting on computer or driving a car, but also when you are playing sports or gardening. What is more, you can use it at home when you are doing housework, or watching TV.
4. Posture brace filed with Lightweight neoprene,can be worn comfortably under or over clothing.Correct your posture all day.You can put on and adjust by yourself.
5. This lightweight back support should be worn daily. First couple of days wear it for 10-20 minutes only, than add 10 minutes every day. Your back and shoulders will slowly adjust and you will build muscle memory for the right posture.
6. By aligning properly your posture, it takes pressure off of key areas, this alleviating back, neck, shoulder and clavicle pain.