Shoulder Joint Support & Pain Relief: This shoulder brace not only provides strong shoulder support, but also relieves shoulder joint pain and prevents injuries and dislocations during sports.Breathable Neoprene Rubber Material: A soft, breathable, lightweight neoprene blend with multiple ventilation holes for airflow. The material is still safe. The shoulder brace keeps the body cool and comfortable during outdoor activities, both under and on clothing.Adjustable Size: The adjustable Velcro closure allows you to achieve the best possible freedom of movement and comfort. Arm Circumference: 9.8"-16.5". Chest Circumference: 31"-42.5". Measure your chest circumference from the armpit. Size for most people.Strengthen Sports Protection: Well-made shoulder brace that provides protection for strains, sprains, irritated muscles, dislocated shoulders, or unstable shoulders of any kind, and is well suited for sports injuries in badminton, basketball, weightlifting, tennis, and volleyball.