Features: Adopting breathable material, which is and comfortable for you to wear. It will pull back the shoulders, the neck and are straightened while aligning the spine, and this will greatly improve your bad habits and good for your spine . With elastic straps on shoulders and hook and loop on waist, this will be easy to wear and convenient to adjust size. Helps with some bad postures and prevents humpbacks and develop good posture. Great for back pain, sprains, shoulder instability, fibromyalgia, etc. Specifications: Item Type: Back Support Belt Material: 85% Polyester + 15% Spandex Colour Black/Black with grey Quantity: 1 pc Function: Correct poor posture and prevent humpback XS: Suit for waist circumference 44-56cm, Suit for height 100-120cm, Suit for weight 12.5-20KG S: Suit for waist circumference 53-65cm, Suit for height 120-140cm, Suit for weight 20-34KG M: Suit for waist circumference 62-74cm, Suit for height 130-160cm, Suit for weight 32.5-52.5KG L: Suit for waist circumference 72-85cm, Suit for height 152-172cm, Suit for weight 49-62.5KG XL: Suit for waist circumference 84-96cm, Suit for height 165-180cm, Suit for weight 57.5-70KG XXL: Suit for waist circumference 95-108cm, Suit for height 176-190cm, Suit for weight 67.5-77.5KG 3XL: Suit for waist circumference 107-119cm, Suit for height 180-200cm, Suit for weight 72.5-90KG Package included: 1 x Back Corrector You can use it not only while sitting in front of the computer or driving, but also while exercising or gardening.Improve your overall posture at work or in life. Great for back pain, sprains, shoulder instability, fibromyalgia, etc. Helps with some bad postures and prevents humpbacks and develop good posture. With elastic straps on shoulders and hook and loop on waist, this will be easy to wear and convenient to adjust size. It will pull back the shoulders, the neck and are straightened while aligning the spine, and this will greatly improve your bad habits and good for your spine . Adopting breathable material, which is and comfortable for you to wear.