21' round Winter Cover made from tough polyethylene fabric - Time-tested! It's the toughest, most durable material available. Won't crack, split or tear from the cold!

• Lightweight - Easier to put on and take off the pool than heavier, bulkier vinyl covers. Takes up less room to store, too
• Hold-Tite reinforced seams - Lasts longer.Won't rip, fray or come apart
• Double-folded self edge - Double-stitched with water, chemical and sun resistant thread
• GLI offers 30 years of experience in the manufacturing of winter covers using the best material with the highest concentration of UV stabilizers to ensure your cover will last for years
• Warranty 7year/1year full