zipped, washable, soft
Case fabric: top layer-40*40/133*100 cotton+ 75gsm microfiber bottom layer-85gsm microfiber+75gsm microfiber
Fill: 300gsm+500gsm 7D polyester fiber
Finish: full zipper off, elastic strap on 4 corner, box quilting
Related Products:
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http://www.springtextile.com/zipper-off-waterproof-mattress-encasement/products-149.html
Used in hospital beds and accompanying beds to effectively organize the invasion and cross infection of germs.