Engineered from 80 GSM 100% Polypropylene non-woven fabric, these Box Spring Encasements feature a secure zipper closure to guard your box spring. Designed for dependable protection, these encasements provide a strong barrier against dust, dirt, and other allergens. Ensure your box spring and mattress remain well-protected with these durable, tear-resistant encasements built to last. Experience peace of mind with the reliable protection from dust, dirt, and other allergens.