outsunny triangle 13x13x13ft sun sail shade garden uv block sunshade outdoor canopy patio lawn shelter sandOutsunny sun shade sail is a stylish and effective shade solution that fit most outdoor living space. You can creatively design your own little shady area in a courtyard, pool, gardens, and children's play areas, car spaces, and even entryways. The sail itself is constructed from a polythene weave material which resists mould, mildew, stain, tear, crack and fade. This shade sail provide up to 95% UV block while allowing cooling air circulation, thus