The 3.6x3.6x3.6m Shade Sail Triangle by ShadeAray Commercial 320 g.s.m. is fabricated from high quality, heavy duty knitted cloth designed to block up to 95% of the suns harmful rays. The shade sail triangle is designed for tension structures and is meant to keep you cool in hot weather. The shade is unaffected by moisture and temperature extremes. 48 hr delivery to UK mainland destinations is £6.99.