NOTE: This cover can not be used by itself without an insulated hard cover under it. Dimension: 76”(L)x 76”(W)x20”(H) 80”(L)x 80”(W)x20”(H) 85”(L)x 85”(W)x20”(H) 90”(L)x 90”(W)x20”(H) 95”(L)x 95”(W)x20”(H) Material: Polyester About Product: 1. ULTCOVER Cover made of heavy duty water-resistant polyester fabric. 2. Outdoor Jacuzzi SPA cover will protects your hot tub from dirt, dust, rain, hail, bird droppings, UV rays etc. 3. Side air vent reduce inside condensation and wind lofting. 4. Elastic hem cord with toggles allows adjustment for a tight custom fit. 5. 3 years warranty. We provides the best quality, long lasting furniture cover, our covers weights much heavier than other covers on the market. Make sure to measure your furniture before you choose cover size. For more high quality patio covers please visit ULTCOVER Amazon Store.