Wind-tunnel tested to 55 mph; UPF 50+ Sun Protection; 360° reflective trim for high visibility in the dark Closed length measures 41''; Open canopy measures 56'' in diameter with a 66" arc Manual open and close; Mesh pocket inside the canopy for handy storage Reinforced Silicone Rib inside the canopy to hang a towel Handle measurements: 4.9" length, 1.26" diameter at the top, 1.49" in diameter at the base