Specifications: Product Type: Cooling Memory Foam Pillow Outside Cover Material: Front Side: Cooling Fiber (350GSM); Back Side: Bamboo Fiber (280GSM) Inside Cover Material: Milk Fiber (120GSM) Filled With: Gel Infused Blue Memory Foam Per Queen Pillow Filler Weight: 1200g/2.65lbs Per King Pillow Filler Weight: 1700g/3.75lbs Item Size: Per Queen Pillow Size: 40x61x22cm/15.75x24x8.66in Per King Pillow Size: 40x86x22cm/15.75x33.86x8.66in Item Weight: Per Queen Size: 1400g/3.09lbs Per King Size: 2000g/4.41lbs Package Contents: 1 x Cooling Memory Foam Pillow Double-Sided Pillow: One side pillowcase uses cooling fibers, always staying cool when the surrounding air gets hot, perfect for summer, giving you a whole night cool sleep; while the other side uses bamboo fiber, comfortable and soft, great for spring, autumn, and winter night. Adjustable Fill & Sturdy Zipper: The long zipper and wide opening allow you to adjust the pillow's height and density by removing or adding foam fill to meet your specific needs. Best Pillows for side, back, stomach, and pregnant sleepers. Filled with gel infused Blue memory foam,make sure that the foam stays cool. Safe and Sterilized: Completely breathable to fight all kinds of environmental allergens like the dust that tends to accumulate inside of regular pillows. Our foam filling, no-toxic or no harmful chemicals, is 100% safe for you and your loved ones. No worry about germs, asthma or any respiratory issues. Full Support For Neck & Spine: Based on ergonomic design, the pillow with gel infused shredded memory foam provides strong rebound and softness, offering firm support to keep the neck in line, and helping align the spine to reduce pressure points. Easy to clean: Our cooling pillowcases, removable and machine washable, allowing you to clean spills and stains easily and it will not shrink after cleaning.