Hydrea London shower caps are lined with soft, eco-friendly waterproof PEVA material, with a thick elasticated band to keep your hair perfectly secure and dry in the bath or shower. They also work brilliantly to intensify hair conditioning treatments.Eco-Friendly PEVA | Super Soft LiningMeasurements:Length: 23cm; Width 19cm; Depth: 1cm Weight: 34gMaterials:100% Polyester with PEVA lining