Protection from Fluids, Accidents, Dust Mites and Allergens. The LUCID Rayon from Bamboo Jersey Mattress Protector is soft, light and protects the top of your mattress from fluids, dust mites and allergens. It is protection made comfortable, with a soft, lightweight feel that does not feel bulky on your mattress.Incredibly Soft and Breathable Fabric. A blend of 70 percent rayon from bamboo and 30 percent cotton creates the perfect jersey fabric. In addition to being incredibly soft, the fabric is highly breathable and exceptionally good at moving moisture away from the body. This protector is designed to be lightweight and unfilled, so it does not change the feel of your mattress. Quiet, Vinyl Free Waterproof Membrane. Beneath the soft fabric is the STRATOSMART Barrier, a polyurethane backing that blocks all liquids with confidence, and prevents dust mites, pet dander and common allergens from reaching your mattress. Thousands of microscopic openings allow the barrier to block out the stuff you do not want on your mattress while allowing airflow for a comfortable climate. Smooth Stretch Fit, Made with a fitted sheet design, this soft, noiseless mattress protector goes on easily and is simple to remove for laundering. The knitted sidewall has an elastic around the skirt that stretches to fit thicker mattresses, including pillow top and memory foam mattresses, and has a smooth, secure fit. Care and Warranty, Mattress protector can be machine washed in warm water with mild detergent and tumble dried on low heat with other bedding. Do not iron, dry clean or use bleach or detergent with whiteners. Drying above recommended temperatures may damage waterproof barrier. This LUCID product is backed by a 15-year warranty. Sidewall: 100 percent polyester, Backing: 100 percent polyurethane.Ultra Soft and Cozy Fabric: A blend of 70 percent rayon from bamboo and 30 percent cotton creates the perfect jersey fabric, just like your favorite lived-in t-shirt, In addition to being super soft, the fabric is highly breathable and exceptionally good at moving moisture away from the body, This protector is unfilled and designed to be lightweight and smooth, so it does not change the feel of your mattress.