12 ft rectangle patio umbrella Jentafix 9x12 Umbrella, Large Cantilever Rectangular Double Top Heavy Duty Offset Umbrellas with 360° Rotation, Outdoor shade for Garden Deck Pool, Navy : Patio, Lawn & Garden To extend the lifespan Size (Inner x Outer x Thickness mm):7 x 13 x 4 Patagonia Outdoor Black Hole SYF : 106

12 ft rectangle patio umbrella Jentafix 9x12 Umbrella, Large Cantilever Rectangular Double Top Heavy Duty Offset Umbrellas with 360° Rotation, Outdoor shade for Garden Deck Pool, Navy : Patio, Lawn & Garden To extend the lifespan Size (Inner x Outer x Thickness mm):7 x 13 x 4 Patagonia Outdoor Black Hole SYF : 106

Patagonia Outdoor Black Hole Duffel 90L Bag Underwater Blue

They use bluesign®-certified fabrics to practice sustainable development concepts and reduce environmental impact, as shown on the blue card below - essentially recycled nylon

SYF : 106

Size (Inner x Outer x Thickness mm):7 x 13 x 4

Follow the Amazon link and you should be able to find a used copy.I’m not sure of the current price that these books are selling, but when I bought my copy years ago they were very affordable

To extend the lifespan of your cantilever umbrella and maintain its pristine condition