UPF 50+ PROTECTION. The Sport-Brella will keep your skin safe and protected from over 99.5% of UVA and UVB rays. With side panels for extra protection and wind flaps for ventilation, you'll get everything you need from this oversized umbrella. RUGGED AND DURABLE COVER. 8-foot canopy is made of 210 D Polyester for the fundamental all-weather protection. It is supported be 4.5 mm steel ribs and a 5 mm steel stretcher. LARGE CANOPY W/ WINDOWS. This easy set up shelter protects you and your team, anytime, anywhere. The side zippered windows are for easy airflow and visibility. If you're spending your days at the field, or the beach, stay shaded with the Sport-Brella.