Our larger 38"arc-diameter means more coverage and wind resistance during rainstorms. A compact 10.62"when closed. Slim profile will slip into any handbag, briefcase, luggage and more. Lightweight at 0.72 lb. Vented canopy allows wind to navigate through the canopy, preventing inversion. 9 rib fiberglass frame is strong and built to last. Wind-tunnel tested to resist powerful winds without inversion. Automatic open/close button system. Special ratchet shaft allows you to pull back in stages for easy and safer reset. Remember to pull it back fully until you hear a click to fully reset. Special no-weave water repellent fabric treatment repels water like nothing else. Water just beads and rolls right off.