Oak Leaf via Amazon offers its Oak Leaf Large Windproof Auto Open J-Handle Umbrella in Black for $17.49. Coupon code "YEKR4PFQ" cuts that price to $15.99. Plus, Prime members bag free shipping. That's $39 off and the lowest price we could find. It features a 51" canopy when open, eight fiberglass ribs, and an anti-slip handle.