Includes natural ingredients that are harvested from the sustainable and renewable Hevea tree.Inherently mold and dust mite resistant and naturally inhospitable to bed bugs and micro-organisms like bacteria. OEKO-TEX Certified Class 1: free from petroleum, VOCs and off-gassing.Open-cell structure enables maximum air flow and breathability for temperature control and cool sleep.Provides support that is consistent, comfortable, pressure-relieving and resilient. Pillows will maintain their shape for the lifetime of the product.Luxurious 400 thread count, 100% cotton sateen cover included. Cover is machine washable. Each pillow includes a fitted liner. Manufactured in our Shelton, CT facility.