COMFORT: This Mattress Protector is a Perfect Choice if you re Considering a Comfortable Soft Breathable and High Quality Mattress Pad. The Fitted Skirt Elasticated From All Corners Provides a Secure non-slip Fit and Fits up to 16 Deep Mattresses. MATERIAL: Our Mattress Protector Cover is Designed to Provide Ultimate Comfort. The Top of the Mattress Pad is 50% Polyester?50% Cotton and the Filling is 100% Polyester for Some Cushioning; however it is not waterproof. FITTED & QUILTED: Protects Your Mattress From Unwanted Stains Dirt Dust and Dander. No Annoying Noise When Moving Around. TOP QUALITY FABRIC: Polyester & Cotton Top for Utmost Sleep Comfort and Breathable Nice & Tight Stitching Pattern. SIZE GUIDE: Mattress Protector Cal King 72 x 84 . All sizes fit 15 to 16 inch Thick Mattresses. Pillowcases sold separately