ST144 12 x 12 ft. Straight Leg Canopy BlueShade Tech affordable, quality canopy offers reliable shade where you need it with this reliable straight leg pop-up canopy. Features 3 height positions for variations, a rigid eave construction and shade up to 144 sq. ft. Our Aluminex fabric offer 99% UV protection and the push button sliders with padded levers make this canopy easy to assemble.