.7 Mill, Gray, Large Umbrella Cover, Fits All 8.5"-11" Umbrellas, Vinyl With Unique Fleece Backing, Which Is First Compressed In A Flat Sheet Of Material Then Laminated To The Vinyl, Adding Strength & Durability, UV & Cold Crack Treatments, In Conjunction With A Light Gray Color Reflects The Sun's Harmful Rays Assuring Years Of Usage, Soft & Rich To The Touch, Adding Luxury To Your Patio While Protecting Your Furniture Investment, Features Sewn In Wand For Easy Installation, Extension Included In Sleeve If Extra Length Is Needed, Perfect For Summer & Winter Storage, All Covers Carry A 3 Year Pro-Rated Warranty.