Woot offers Sport-Brella Versa-Brella XL SPF 50+ Adjustable Umbrella with Clamp, Dark Blue for $14.99 (orig. $54.99).  Free shipping for Prime Members.

Product Description:
The Versa-Brella XL UPF 50+ Personal Sun Shade, your ultimate solution for sun protection during outdoor activities. Whether you're at the beach, watching a game, or camping, the Versa-Brella XL provides quick, hassle-free shade. With its new and improved heavy-duty clamp, it attaches easily to beach chairs, strollers, golf carts, and more, offering versatile use. The UPF 50+ fabric blocks 99.5% of harmful UVA and UVB rays, keeping your skin safe while you enjoy the outdoors. With 10 square feet of coverage, this umbrella ensures you and your loved ones stay shaded. The three push-button adjustment points allow you to adjust the angle to nearly any configuration, ensuring your always covered. The Versa-Brella folds to a compact size of 40 inches x 4 inches and comes with a carrying bag for easy transport. Plus, protective safety tips add an extra layer of security, making it a safer choice than traditional umbrellas. The Versa-Brella is the perfect companion for sun protection wherever your adventures take you. 

• UPF 50 PLUS PROTECTION. The Versa-brella is a clamp-on shade canopy umbrella that offers UPF 50 plus protection to help keep skin safe from 99.5% of UVA and UVB rays
• EASY TRANSPORT FOR EASY PROTECTION. The Versa-Brella conveniently folds into a compact carrying case, weighing only 1.8 pounds, so it can be taken anywhere. When opened, the XL size spans 44 x 44 inches
• ADJUSTS TO ANY ANGLE: The 4-way, 360-degree swivel and 2 push button hinges allows the Versa-brella to be adjusted to any angle to block the sun
• HAVE NO FEAR. From the beach to the sidelines, the Versa-Brella lets you stay committed to your team, family, and friends, while keeping your skin protected against the sun
• RUGGED COVER AND DURABLE CONNECTOR. The rugged canopy cover won’t rip or tear; a heavy-duty universal clamp connects to square and tubular surfaces and ensures a secure hold on golf bags, beach chairs, or even bleachers
• STAY SHADED ANYWHERE: The Versa-Brella XL features an improved, heavy-duty clamp that opens up to 1.75 inches, allowing it to securely attach to various tubular and squared surfaces on chairs, wagons, golf carts, and more