Profeional Sport Back Support Motorcycle Back Support Protector Shoulder Equestrian Motocro Ski Snowboard Back Protection Ski motorcycle back care nursing back armor double protection 1) 2.5mm PE plastic shell shock, and lumbar spine protection, ease of use, excellent protection performance.Bunk pad. 2)Under PE armor. Freely within the pad can be easily removed, 10mm PE high foam 5mm hole punch, double paste cloth towel; outer pad (the layer under the armor) is 10mm PE high foam 5mm hole punch, posted outside the mesh, inside patch cloth towels. Integration of scientific design, protecting your safety, while not forgetting to bring you comfort ventilation. 3) High stretch nylon cord and PVC mesh (protection belt) on a full-length Velcro, so you can adjust the straps of any length, until you feel comfortable and fit so far. NOTE:Please read carefully before buying size specifications 1.Ourgoodsisthroughtheactualmeasurementsize. 2.Becauseitismeasuredbyhand,sotheerroris1-2cmisnormalphenomenon. 3.Pleasetakeacloserlookatthesizeoftheyouneed,andmaketherightchoice. Thankyouforyourunderstandingandsupport Iwishyouahappyshopping