SMLIXE 8.5x8.5FT Square Patio Umbrellas Outdoor Large Market Umbrella With Push Button Tilt and Crank Lift System 8 Sturdy Ribs UV Protection Waterproof Sunproof Orange. PREMIUM FABRIC: Made of 100% polyester fabric with waterproof coating and anti-UV coating on umbrella cloth, which features outdoor umbrellas high elasticity, firmness and durability.