100% Waterproof Polyester Shell ✅ 💧🛡️ 100% WATERPROOF PROTECTION – Full zip encasement seals all six mattress sides, blocking spills, bed bugs, dust & dander—ideal barrier layer for mattress longevity 💧🛡️🧼🔐 ✅ 📏 FITS DEEP MATTRESSES – Twin / Twin XL / Split King fit 10″–13″; Full / Queen / King fit 10″–16″ deep; snug elastic zip fit stays tight even with mattress toppers 🛏️📏🔐🧊 ✅ 🧵 DURABLE POLYESTER DESIGN – Heavyweight stretch polyester resists tearing and abrasion; breathable membrane allows airflow while repelling liquids and moisture 🧼💪🌬️✅ ✅ 😌 QUIET & BREATHABLE COMFORT – No crinkle TPU coating under polyester shell prevents sleeping noise; breathable construction keeps you cool while fully sealed 💧🧊🛏️🎯 ✅ 🧺 EASY CARE & HYGIENE – Full zip design is machine washable and dryer safe (gentle/dry low). Blocks allergens, bed bugs, stains, and keeps your mattress fresh and clean 👍🧼🔄🌟