Polyester. 

If you are not 100% happy with your purchase, you can return the unused product with your receipt and get a full refund or exchange the product for another one within 14 days of purchase. Customer pays shipping costs when returning a product.  

Please allow 1-3 days from your order date for your product to be shipped.  Standard shipping costs will be calculated during checkout.  B You™ uses PayPal to complete all payment and shipping transactions.