{"product_id":"sun-shade-sail-11ft-x-21ft-dark-grey-rectangle-canopy-cool-uv-block","title":"Sun Shade Sail 11ft x 21ft Dark Grey Rectangle Canopy - Cool UV Block","description":"\u003cp\u003eIn this review of the Sun Shade Sail 11' x 21' dark grey rectangle canopy, the bottom line is straightforward: this is a practical, affordable solution for anyone who wants durable UV protection and dappled airflow for patios, decks or backyards. The sail's strongest selling point is its high-density polyethylene weave that blocks up to 95% of UV while still allowing cooling breezes and light rain to pass through, making it a sensible choice for outdoor shading without trapping heat.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh shading rate:\u003c\/strong\u003e The knitted high-density polyethylene fabric provides a 90%-95% shading rate that significantly reduces direct sunlight and UV exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUV protection:\u003c\/strong\u003e The material is designed to block 95% of UV rays, offering effective sun protection for outdoor seating and play areas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreathable mesh:\u003c\/strong\u003e The permeable fabric allows cooling breezes and raindrops to penetrate, which prevents heat buildup beneath the sail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction:\u003c\/strong\u003e Cut from a complete mesh with double strength stitched seams and anti-rust D-rings in the corners for long-lasting outdoor use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurved edge design:\u003c\/strong\u003e Pre-curved edges reduce sagging and improve fit and shading performance when tensioned correctly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation ready:\u003c\/strong\u003e The package includes four cords and four D-rings; leave 0.5-1 ft between fixing points and the sail for mounting hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis shade sail suits homeowners and renters who want an inexpensive way to create a shaded outdoor living space on patios, decks, pergolas or over play areas. It is particularly useful for people who prefer a breathable canopy that reduces heat while maintaining airflow and a natural aesthetic.\u003c\/p\u003e\n\u003cp\u003eThose who need a fully waterproof shelter or precise factory-measured dimensions for structural installations should look elsewhere; the sail is not waterproof and length is measured between D-ring outer edges with a tolerance up to 4 in, so custom sizing may be necessary for exact fits.\u003c\/p\u003e\n\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 blocking performance that keeps areas noticeably cooler and protected from sun.\u003c\/li\u003e\n\u003cli\u003eBreathable mesh prevents trapped heat and tolerates light rain, preserving comfort under the canopy.\u003c\/li\u003e\n\u003cli\u003eSturdy finish with double-stitched seams and anti-rust D-rings adds to perceived durability.\u003c\/li\u003e\n\u003cli\u003eCurved edges help the sail stay taut and reduce sagging when installed properly.\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 provide full rain protection in heavy storms.\u003c\/li\u003e\n\u003cli\u003eSize is measured from D-ring to D-ring with up to 4 in tolerance, so exact fit requires allowance or custom order.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eRectangle sun shade sail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e11 ft x 21 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eDark grey\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHigh-density polyethylene knitted mesh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShading rate\u003c\/td\u003e\n\u003ctd\u003e90%-95% (white series 80%-85%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV blocking\u003c\/td\u003e\n\u003ctd\u003eBlocks up to 95% of UV rays\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware included\u003c\/td\u003e\n\u003ctd\u003e4 cords and 4 anti-rust D-rings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 11' x 21' dark grey shade sail is a solid value for creating comfortable, shaded outdoor space without costly installation. It delivers strong \u003cstrong\u003eUV protection\u003c\/strong\u003e, breathable comfort and durable stitching, making it ideal for patios and decks; however, anyone needing waterproof coverage or precise factory measurements should plan accordingly or order a custom size.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs the shade sail waterproof?\u003c\/strong\u003e\u003cbr\u003eThe sail is not waterproof; it is a permeable knitted mesh that lets light rain and breezes through.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much space is needed for installation?\u003c\/strong\u003e\u003cbr\u003eLeave about 0.5-1 ft between the fixing point and the sail for mounting hardware or rope; accessories are sold separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the sail block UV?\u003c\/strong\u003e\u003cbr\u003eYes, the high-density polyethylene fabric blocks up to 95% of UV rays and offers significant sun protection.\u003c\/p\u003e","brand":"SUNLAX","offers":[{"title":"Default Title","offer_id":48249344983259,"sku":"B0C1C6D2Y8","price":135.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81zkp_RjPtL._AC_SL1500_957a68d9-30f6-48d2-b38f-e915e64b9201.jpg?v=1770923159","url":"https:\/\/gearmusthave.com\/products\/sun-shade-sail-11ft-x-21ft-dark-grey-rectangle-canopy-cool-uv-block","provider":"GearMustHave","version":"1.0","type":"link"}