{"product_id":"shademart-11-ft-x-21-ft-white-sun-shade-sail-upf50-rectangle-cool","title":"ShadeMart 11 ft x 21 ft White Sun Shade Sail UPF50 Rectangle - Cool","description":"\u003cp\u003eIn this review of the ShadeMart 11' x 21' White Sun Shade Sail, the bottom line is simple: this is a practical, heavy-duty rectangle canopy for homeowners who want reliable UV protection and airflow for patios, carports or pool areas. The reviewer found the woven HDPE fabric and stainless steel D rings deliver durability and a sturdy feel, while the water-permeable design keeps rain from pooling. If you need a large shade that lowers ambient temperature and resists sun damage, this sail is worth considering.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWoven HDPE fabric:\u003c\/strong\u003e The high density polyethylene cloth provides a strong, UV-resistant surface that blocks up to 95% of harmful rays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel corner D rings:\u003c\/strong\u003e Heavy duty metal rings attached to reinforced white webbing make mounting secure and reduce tear risk at anchor points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater permeable construction:\u003c\/strong\u003e Breathable fabric allows water and air to pass through so the sail will not collect water or trap heat under it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature reduction:\u003c\/strong\u003e By blocking sunlight the sail can lower the shaded area temperature by roughly 10 to 15 degrees for a noticeably cooler outdoor space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom size options:\u003c\/strong\u003e Multiple custom sizes are available so customers can match dimensions to patios, pergolas or carports with careful measuring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRectangle styling:\u003c\/strong\u003e The simple rectangular shape integrates easily with many outdoor designs while serving as both shade and a decorative element.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis sail is ideal for homeowners and renters who want a durable, breathable shade solution for patios, pools, carports and pergolas and who value UV protection and airflow over total waterproofing. It works well for those who need a large coverage area and who can install anchors such as poles, walls or trees using an appropriate hardware kit.\u003c\/p\u003e\n\u003cp\u003eIt is less suitable for customers who require a fully waterproof canopy for extended rain protection or those who need a perfectly rigid, engineered fit; the sail is made to be tensioned in place and may vary slightly in shape due to manual measurement and fabric flexibility.\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\u003eStrong woven HDPE fabric and reinforced stainless steel D rings make the sail feel durable and long lasting.\u003c\/li\u003e\n\u003cli\u003eEffective UV protection with a UPF50-level performance that reduces heat under the canopy.\u003c\/li\u003e\n\u003cli\u003eBreathable, water-permeable design prevents pooling and improves comfort on hot days.\u003c\/li\u003e\n\u003cli\u003eCustom size options and simple rectangle styling make it adaptable to many outdoor spaces.\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 complete shelter in heavy rain.\u003c\/li\u003e\n\u003cli\u003eSize and exact rectangle shape can vary slightly from manual measurements, which may require careful measuring and planning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eRectangle shade sail canopy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e11' x 21' (approximate)\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\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\u003eWater resistance\u003c\/td\u003e\n\u003ctd\u003eWater permeable, not waterproof\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV protection\u003c\/td\u003e\n\u003ctd\u003eBlocks up to 95% of harmful UV rays (UPF50)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable options\u003c\/td\u003e\n\u003ctd\u003eMultiple colors and custom sizes\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' White Sun Shade Sail is a solid value for anyone seeking a durable, breathable canopy that delivers strong UV protection and noticeable cooling. It is best for outdoor seating areas, carports and poolside shade where water permeability and airflow matter more than full waterproofing; measure carefully to ensure fit and expect a straightforward installation with proper anchors.\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 breathable, so it will not hold water and is not intended to be a waterproof shelter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I mount this to trees or poles?\u003c\/strong\u003e\u003cbr\u003eYes, with the proper hardware kits the sail can be attached to poles, trees, walls or roofs; reinforced D rings and webbing simplify secure mounting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it really reduce temperature?\u003c\/strong\u003e\u003cbr\u003eYes, by blocking sunlight the sail lowers ambient temperature in the shaded area by roughly 10 to 15 degrees according to manufacturer guidance and user reports.\u003c\/p\u003e","brand":"ShadeMart","offers":[{"title":"Default Title","offer_id":48614041682139,"sku":"B0B69X2BFD","price":135.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/91DmqjpB52L._AC_SL1500_e3107998-e542-4670-affe-ff70efc11a79.jpg?v=1778394207","url":"https:\/\/gearmusthave.com\/products\/shademart-11-ft-x-21-ft-white-sun-shade-sail-upf50-rectangle-cool","provider":"GearMustHave","version":"1.0","type":"link"}