{"product_id":"shademart-17-ft-x-21-ft-turquoise-rectangle-sun-shade-sail-upf50","title":"ShadeMart 17 ft x 21 ft Turquoise Rectangle Sun Shade Sail - UPF50","description":"\u003cp\u003eOur review of the ShadeMart 17' x 21' Turquoise Sun Shade Sail finds it best for homeowners and small-business owners who want a durable, breathable shelter that cuts heat and UV without trapping moisture. The single biggest reason to buy is the woven HDPE fabric that blocks up to 95% of harmful UV rays while remaining water and air permeable, so it lowers temperatures and resists wind stress in summer storms. The review focuses on real-world use on patios, carports and pool areas where coverage, material quality and simple installation matter most.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWoven HDPE fabric:\u003c\/strong\u003e provides strong UV blocking and tear resistance while staying breathable so rain drains through instead of pooling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel D rings:\u003c\/strong\u003e are attached to heavy duty white webbing at the corners for secure anchor points and longer corrosion resistance outdoors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater and air permeable:\u003c\/strong\u003e allows airflow to reduce temperature by at least 10 to 15 degrees in direct sun while avoiding the flapping and strain that trapped water would cause.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom size options:\u003c\/strong\u003e a wide range of sizes is offered so buyers can match odd-shaped patios, pergolas or carports when measured carefully.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRectangle styling:\u003c\/strong\u003e a clean, versatile shape that integrates with many outdoor designs and can be combined with multiple colors for layered shade.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe ShadeMart rectangle sun sail is ideal for homeowners, renters with permission to attach hardware, and small businesses that need economical, long-lasting shade for a patio, pool area or carport. People who value breathability and UV protection over full waterproofing will appreciate the fabric that lets water pass through and reduces peak temperatures.\u003c\/p\u003e\n\u003cp\u003eThose who need complete rainproof coverage or who cannot install anchor points should look elsewhere; this style is explicitly not waterproof and requires proper hardware and attachment points like poles, trees or building anchors for best performance.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBlocks up to 95% of UV rays, meaning much cooler outdoor spaces in strong sun.\u003c\/li\u003e\n\u003cli\u003eDurable woven HDPE construction that customers report holds up through summer storms.\u003c\/li\u003e\n\u003cli\u003eStainless steel corner D rings and heavy webbing provide secure, corrosion-resistant anchors.\u003c\/li\u003e\n\u003cli\u003eBreathable design prevents water pooling and improves airflow compared with solid canopies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot waterproof, so it will not keep out heavy rain or create a dry area beneath during downpours.\u003c\/li\u003e\n\u003cli\u003eShade sails require accurate measurement and proper hardware for a neat, tensioned install; manual size variance may occur.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\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\u003eBlocks up to 95% of UV rays (UPF50)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCorner Hardware\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\u003eFunctionality\u003c\/td\u003e\n\u003ctd\u003eWater and air permeable, not waterproof\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe ShadeMart 17' x 21' rectangle shade sail is a solid value for anyone needing breathable, high-UV protection coverage for outdoor living spaces. Its durable HDPE fabric and stainless corner hardware make it well suited to patios, pools and carports, provided you accept that it is not waterproof and will need correct anchoring and measurements for a tidy install.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this shade sail waterproof?\u003c\/strong\u003e\u003cbr\u003eNo. The fabric is water permeable and designed to let water pass through; it is not a waterproof canopy for rain protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the corners rust?\u003c\/strong\u003e\u003cbr\u003eThe corner D rings are stainless steel and attached to heavy white webbing, so they resist corrosion under normal outdoor conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I order a different size?\u003c\/strong\u003e\u003cbr\u003eYes. ShadeMart offers a range of custom sizes, but measure your venue accurately because manual measurements can vary.\u003c\/p\u003e","brand":"ShadeMart","offers":[{"title":"Default Title","offer_id":48749842268379,"sku":"B0B22RHS1B","price":173.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81tBzelYGJL._AC_SL1500_1c1e844e-9281-4803-af2a-913c2bfe1db8.jpg?v=1778859406","url":"https:\/\/gearmusthave.com\/products\/shademart-17-ft-x-21-ft-turquoise-rectangle-sun-shade-sail-upf50","provider":"GearMustHave","version":"1.0","type":"link"}