Texture of material：
Outer layer: polyester， anti-bacterial scrub resistance，
Middle layer: PE film， waterproof and anti leakage，
Inner layer: non-woven fabric， fixed condensation
Filling: new water polymer gel
Specifications：
XS:20*30cm， weight 350 grams，Less than 1.5kg
S:30*40cm， weight: 740 G，Less than 2.5kg
M:40*50cm， weight: 1080 G，Less than 4kg
L:50*65cm， weight: 1500 g，Less than 6kg
XL:50*90cm， weight: 2060 G，Less than 25kg