Enhance the energy efficiency of your inflatable hot tub with the Lay-Z Spa EnergySense Round Thermal Hot Tub Cover 216 x 80cm, which potentially reduces energy costs by up to 40%. This thermal cover features a double layer of insulation that helps the hot tub retain heat and allows water to heat up more quickly. Constructed from durable three-ply UV-resistant and water-repellent DuraPlus material, the cover is not only strong but also resistant to the elements. It boasts double-stitched seams for added strength and improved impermeability. The thick internal layer of insulating cotton and the anti-mildew-treated interior work together to minimize heat loss, while the safety lock clips and adjustable strap ensure a snug and secure fit, even in windy conditions. Additionally, the cover includes a zippered door designed for built-in pumps, and it can be easily removed to accommodate external pumps.