Gel Memory Foam : Memory foam infused with gel that captures and distributes heat to improve your sleeping experience. High-density memory foam provides adaptive comfort and support, helps relieve common pressure points and prevent you from sinking into foam. Premium Fiber Surface : Use skin-friendly and breathable fiber, with adjustable elastic straps and anti-slip surface backing to prevent sliding. Zipper closure for convenient disassembly and washing. Certification : The memory foam mattress topper is certificated CertiPUR-US and cover is certificated OEKO-TEX. Tips : Allow 24-48 hours for new foam smell to dissipate and fully expanded.