An acoustically enhanced three-ply composite made of acrylic twill weave outer fabric, a rubber inner layer and a polyester lining fabric.
Other Haartz fabrics in this family: Twillfast II, Twillfast JX, Twillfast RPC and Twillfast MC.
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Sonnenland®, Stayfast® and Twillfast® are registered trademarks of The Haartz Corporation.