... COTTON2) Composition: 100 % COTTON TWILL 3) Pattern: Embroidered or Printing4) Cotton sweatband inside5) Closure: BRASS BUCKLE6) ... material,Canvas,Polyester,Acylic etc5. Back ClosureVelcroBrass,Plastic, ,Velcro,Metal buckle.Any kind of back strap closure6. ... analysis, production cycle, market test , risk control) Material advise.Polyester(cheap) – mainly for snapback hat , baseball capAcrylic(cheap) ...