100% Polyester, 38x45cm (one size), Weight 60g, Features: Relies on Ultra Fine Mesh to keep away small Insects, no chemicals used, compact & easy carry with Storage Bag, fits over most Size & Shapes of Hats, can be used without a hat, Elasticated neck closure, Washable & Versatile Ideal: Travellers, Holiday Makers, Hikers NO CHEMICAL IMPREGNATION