99% UV protection. The inside is cool in the shady of wood. The silver coating keeps out the hot sun. A large hand open umbrella that prevents rain and sunlight. A must-have for summer golf. Size: 31.5 inches (80 cm) x 8 ribs; Total Length: 38.6 inches (98 cm); Weight: Approx. 18.9 oz (530 g); Fabric: 100% nylon (polyurethane coating); Central bar: Aluminum; Ribs: Fiberglass; Handle: Wood; Country of Origin: China; Lieben Cooling Umbrella.