materialOur hot tub covers are made of high-quality waterproof 210D silver-coated fabric, which is waterproof and sunscreen in summer, snow and frost in winter, leaves and bird droppings in autumn, and protects your outdoor bathtub, swimming pool and furniture all year round. proof design of this outdoor bathtub cover adopts a drawstring design, which can be firmly locked on your bathtub to prevent it from being blown away by the wind. proof & UV-proofThe surface of the hot tub cover adopts a waterproof silver-coated design, which is effectively waterproof and effectively prevents UV damage, which greatly extends the service life of the cover. ple sizesThere are 6 sizes to choose from: 160*90cm , 190*30cm , 190*90cm , 200*30cm , 210*30cm , 215*70cm. Please check the size of your furniture before buying and make sure the size of the cover you want.