35% Bamboo Rayon? LUXURIOUS COOLING BAMBOO FIBER – FeelAtHome??s high quality, bamboo zippered pillow cases are extremely comfortable and soft to the touch! Made of bamboo fibre for that cooling effect to repel off heat so that you stay cool during warm nights!? FULL WATERPROOF COVERAGE – The bamboo pillow protector has a 100% waterproof membrane that gives your pillow full waterproof coverage. Protect against perspiration, body fluids, saliva, stains and more? ANTI-BED BUGS & ANTI-DUST MITE – Rest soundly at night without having to worry about germs and allergens or other allergy triggers on your pillow. These bamboo pillow protectors are hypoallergenic, anti-bedbugs, anti-allergen and anti-dustmite? ZIPPERED PROTECTION – Zippered encasement bamboo pillow protector ensures a fully secured coverage and closure of your pillow. This helps to provide the ultimate protection, preventing dirt and strands of hair from entering your pillow? MACHINE WASHABLE, 100% SATISFACTION GAURANTEED – The breathable bamboo pillow protector is machine washable. FeelAtHome offers a 100% satisfaction guarantee. If you do not like these pillow protectors for any reason, let us know for a 100% money-back guarantee!