Water Bag: with waterbed PVC vinyl (EN-71, non-toxic), cold-resistant, heat-resistant and prevent enlargement.
Soft foam liner: integral edge-wrapped design, with high density and excellent elasticity foaming substance covered with 0.45mm waterbed PVC vinyl, for compress packing. Zipper quilting cover: with 100% high class cotton cloth casing for absorbing sweat and ventilation. Quilting with solid and heavy cotton weighs 240g and 1.2cm foam, with high quality and elegance, ventilation and temperature retention.