... closureMetal, plastic straps, Velcro buckle,adjustable clip back,full size closure,etcAny kind of back strap closure is available6Price termFOB Shenzhen/Guangzhou ... requirements.2. Cap, series: baseball cap, sports cap, cowboy hat, bucket cap, military cap,fisherman cap, kids cap, mesh cap, wished cap,custom cap, Flat brim cotton snapback cap, Lower peak snapback cap ,etc ...