{"product_id":"shademart-17-ft-x-21-ft-grey-sun-shade-sail-upf50-cooling-canopy","title":"ShadeMart 17 ft x 21 ft Grey Sun Shade Sail - UPF50 Cooling Canopy","description":"\u003cp\u003eIn this review of the ShadeMart 17' x 21' grey sun shade sail, the bottom line is simple: it is a heavy-duty, breathable canopy for people who need dependable UV protection and airflow over large outdoor areas. The reviewer found it best for patios, carports and poolside canopies because the woven HDPE fabric blocks up to 95% of harmful UV rays while letting water and air pass through, and the stainless steel D rings with reinforced webbing make mounting secure. If you want a nonwaterproof, ventilated shade that lowers temperatures, this sail delivers.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWoven HDPE fabric:\u003c\/strong\u003e provides durable, breathable sun protection that reduces heat under the canopy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPF50 protection:\u003c\/strong\u003e blocks up to 95% of harmful UV rays, helping protect skin and furniture from sun damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel D rings:\u003c\/strong\u003e heavy duty corner rings attached to white webbing give secure anchor points for a long-lasting installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater and air permeable:\u003c\/strong\u003e allows rain and breeze to pass through so the sail does not balloon or trap moisture during storms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom sizing available:\u003c\/strong\u003e the brand offers many sizes so you can get a sail that matches specific patio, pergola or carport dimensions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis shade sail is aimed at homeowners and renters who need a large, ventilated sun canopy for patios, yards, carports or over pools and want to lower surface temperatures without creating a sealed roof. It suits DIY installers who will attach the sail to poles, walls, trees or roof points using compatible hardware kits.\u003c\/p\u003e\u003cp\u003eIt is not for buyers who need a fully waterproof canopy or a rigid, permanent roof replacement; those users should consider solid awnings or waterproof covers instead. Also measure carefully before ordering a custom size because manual measurements can vary.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDurable woven HDPE construction that customers report holds up well and provides consistent shade.\u003c\/li\u003e\n\u003cli\u003eEffective UV blocking and noticeable cooling under the sail, improving outdoor comfort.\u003c\/li\u003e\n\u003cli\u003eStainless steel D rings and reinforced webbing make attachment points strong and reliable.\u003c\/li\u003e\n\u003cli\u003eBreathable design prevents water pooling and lets wind pass through, reducing stress in high winds.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNot waterproof, so it will not keep an area dry in a rainstorm.\u003c\/li\u003e\n\u003cli\u003eSome customers report mixed experiences with exact sizing, so careful measurement is required before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eShadeMart\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShape\u003c\/td\u003e\n\u003ctd\u003eRectangle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e17' x 21'\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eWoven HDPE (High Density Polyethylene)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV Protection\u003c\/td\u003e\n\u003ctd\u003eUPF50, blocks up to 95% of UV rays\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware\u003c\/td\u003e\n\u003ctd\u003eStainless steel D rings with heavy duty white webbing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater Resistance\u003c\/td\u003e\n\u003ctd\u003eWater permeable, not waterproof\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe ShadeMart 17' x 21' grey sun shade sail is a practical, value-minded choice for anyone wanting strong UV protection and airflow over a large outdoor area. Its heavyweight woven HDPE and reinforced corners make it durable and easy to secure, and while it is not waterproof it reliably lowers temperatures and stands up to challenging conditions, making it a good investment for patios, carports and poolside shade.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIs this shade sail waterproof?\u003c\/strong\u003e\u003cbr\u003eNo, the fabric is water permeable and breathable; it will not provide a dry cover in rain.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it be attached to trees or poles?\u003c\/strong\u003e\u003cbr\u003eYes, with the proper hardware kits it can be mounted to poles, trees, walls or roofs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill it block UV effectively?\u003c\/strong\u003e\u003cbr\u003eYes, the woven HDPE fabric offers UPF50 protection and blocks up to 95% of harmful UV rays.\u003c\/p\u003e","brand":"ShadeMart","offers":[{"title":"Default Title","offer_id":48618807853275,"sku":"B09H8SS1H2","price":173.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/816THzWgLIL._AC_SL1500_9d3d3218-d091-4f9d-beca-4b401b17e93b.jpg?v=1778487149","url":"https:\/\/gearmusthave.com\/products\/shademart-17-ft-x-21-ft-grey-sun-shade-sail-upf50-cooling-canopy","provider":"GearMustHave","version":"1.0","type":"link"}