Durable Material for Posture Trainer: Our straight back is made with high-quality, wear-resistant stitching that is washable and soft to the touch. There are vents at the shoulders. You can stay breathable and comfortable wherever you go, while it helps you correct your posture stress-free. . POSTURE CORRECTING ADJUSTABLE SIZE: Our back brace features extra-long premium velcro straps that are adjustable in size and can be easily put on and taken off without assistance. Suitable for different body types, men, women, old and young, fat and thin (suitable for height 155-190cm, weight 40-95kg), easily adapting to the needs of most people. . Shoulder Strap Posture Correction: Our posture corrector stretches the shoulders and is a back support. It can improve the hunchback caused by poor posture and make the neck tilt forward. Keep your shoulders and spine straight as you go about your daily life. You can work and learn with more confidence anytime, anywhere. . Back Straightener Relieves Sore Muscles: If you often experience neck, shoulder and back pain while working or studying, you can try our braces. Proper posture adjustments and shoulder stretches can relieve pressure on vital areas. Relax your back and neck. There is also collarbone pain. . Back Hair Straightener Premium Service: If you have any questions, please feel free to contact us, we will reply to you within 24 hours. .