Generally adopting high filament and super fine yarn, the high density fabrics are very soft are very soft and excellent in down-proofing after being treated with water-repellent , cire, down-proof coating and other finishing.The air permeability could reach value 0.1, even 0, solving the down penetration problem, which puzzling many fabric suppliers.Generally adopting 30d, 40d full dull nylon-6, nylon-66, and 50d full dull poly pongee. Poplin, twill, satin, rip-stop, dobby, blend are all available in weaving styles. One roll in one package.