FUNCTION DESCRIPTION:1.To provide your shoulder get hunts.2.Suitable for track and field events，golf，ect.3.Protect your muscle.4.SIZE:S/M/L/XL:40-44cm/45-48cm/49-52cm/53-55cm.COMPONENT:Import Stretch Nylon and Neoprene FormWASH INSTRUCTION:Use cold water or machine to wash.Then dry，No need anhydration.PACKING: 1 PC Pad Protection.If a rash or irritation occur ， discontionue and consult your physician.PROVIDES FIRM SUPPORT for WEAK SHOULDES.