Product information: Applicable sports: Basketball, weightlifting, soccer, tennis, boxing, badminton, table tennis, mountaineering, rock climbing, volleyball, taekwondo, cycling, running, outdoor fitness Applicable scenarios: Running, gym equipment use, health massage, body-shaping workouts, cycling, shooting sports, sports protective gear accessories, fishing Colors: Black M, Black L, Black XL, Black XXL, White M, White L, White XL, White XXL, Pink M, Pink L, Pink XL, Pink XXL Suitable for: Adults Sizes: MXXL Protects: Head, shoulders, and other body parts Posture-correcting seat device Size: Prevention: 1. Asian sizes are 1 to 2 sizes smaller than European and American people. Choose the larger size if your size between two sizes. Please allow 2-3cm differences due to manual measurement. 2. Please check the size chart carefully before you buy the item, if you don't know how to choose size, please contact our customer service. 3.As you know, the different computers display colors differently, the color of the actual item may vary slightly from the following images. Packing list: Posture corrector*1 Product Image: