Features - Scratch-resistant autolock zipper on the front, easy to wear and take off. Double straps offers high support.Material:90% nylon, 10% spandex. It can provide effective support and compression for muscles.Size - If you have high requirements for support, please choose the normal size. If you have high demands on comfort, please choose a larger size.Great support:Wide straps shoulder that crisscross in back provide a significant amount of support ,It doesnt squeeze your back in an unsightly manner and its incredibly comfortable,perfect for Yoga, Training,running, work out ,box,Pilates,walking,take exercise ,build up.