{"product_id":"shademart-11ft-x-21ft-grey-sun-shade-sail-upf50-rectangle-cool","title":"ShadeMart 11ft x 21ft Grey Sun Shade Sail UPF50 Rectangle - Cool","description":"\u003cp\u003eIn this review of the ShadeMart 11' x 21' grey rectangle sun shade sail, the bottom line is simple: it is a practical, heavy-duty canopy for anyone wanting reliable sun protection and airflow rather than full waterproofing. The sail's woven HDPE fabric with stainless steel D rings and reinforced webbing delivers a stable, long-lasting cover that blocks most UV while allowing water and breeze to pass through; that combination makes it ideal for patios, carports, and poolside shading where heat reduction and durability 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 a durable, UV resistant canopy that blocks up to 95% of harmful sunlight while remaining breathable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel D rings:\u003c\/strong\u003e are attached to heavy duty webbing to give secure anchor points that resist rust and hold tension well.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater permeable design:\u003c\/strong\u003e lets rain and air pass through the cloth, reducing pooling and wind stress on the installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat reduction:\u003c\/strong\u003e the fabric significantly lowers temperatures beneath the sail, creating a cooler outdoor area for seating or vehicle shade.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom size options:\u003c\/strong\u003e the brand offers tailored dimensions so installations can be matched to specific patios, carports, or pool decks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRectangle styling:\u003c\/strong\u003e fits common architectural layouts and integrates cleanly with existing poles, walls, or trees.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis shade sail suits homeowners and small businesses that need effective solar protection over patios, pergolas, carports or pool areas and prefer a breathable, water-permeable fabric over a waterproof tarp. Installers who value corrosion-resistant hardware and reinforced corners will appreciate how the sail holds tension and stands up to weather.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for buyers who need a fully waterproof canopy or an exact precision-cut rectangle without any manual-measurement variance; customers who require total rain protection or exact dimensional tolerances should consider alternative shelter solutions.\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\u003eHigh UV protection from the woven HDPE cloth keeps shaded areas noticeably cooler.\u003c\/li\u003e\n\u003cli\u003eDurable construction with stainless steel D rings and heavy webbing supports long service life and secure mounting.\u003c\/li\u003e\n\u003cli\u003eWater permeable design prevents pooling and reduces wind-related stress on the fabric and anchors.\u003c\/li\u003e\n\u003cli\u003eCustom sizing and simple rectangle styling make it adaptable to many outdoor layouts.\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 an outdoor area fully dry during heavy rain.\u003c\/li\u003e\n\u003cli\u003eSize and shape can vary slightly due to manual measurements, which may require careful measuring before ordering.\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\u003e11' 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\u003eHardware\u003c\/td\u003e\n\u003ctd\u003eStainless steel D rings with heavy duty webbing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eWater permeable and UV resistant (blocks up to 95% UV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe ShadeMart 11' x 21' grey rectangle shade sail is a solid, value-minded choice for anyone seeking effective sun protection with breathable, durable materials. It is best for patios, carports and pool areas where water permeability and corrosion-resistant anchors matter, and it offers good longevity and heat reduction as long as full waterproofing is not required.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this shade sail waterproof?\u003c\/strong\u003e\u003cbr\u003eThe fabric is water permeable and not waterproof, so it allows rain to pass through rather than provide a dry sheltered area.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much UV protection does it provide?\u003c\/strong\u003e\u003cbr\u003eThe woven HDPE material blocks up to 95% of harmful UV rays, reducing sunlight and lowering temperatures beneath the sail.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be custom sized?\u003c\/strong\u003e\u003cbr\u003eYes, the manufacturer offers a range of custom sizes; measure your venue carefully because manual measurements can cause slight size variations.\u003c\/p\u003e","brand":"ShadeMart","offers":[{"title":"Default Title","offer_id":48262647972059,"sku":"B0B69XN7G2","price":135.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/816THzWgLIL._AC_SL1500_61875729-2af2-4350-8933-dcc06b695304.jpg?v=1778335764","url":"https:\/\/gearmusthave.com\/products\/shademart-11ft-x-21ft-grey-sun-shade-sail-upf50-rectangle-cool","provider":"GearMustHave","version":"1.0","type":"link"}