{"product_id":"custom-size-21-x-21-x-21-white-triangle-sun-shade-sail-upf50","title":"Custom Size 21 x 21 x 21 White Triangle Sun Shade Sail - UPF50","description":"\u003cp\u003eIn this review of the Custom Size 21' x 21' x 21' White Triangle Sun Shade Sail the bottom line is simple: it is a practical, heavy-duty shade solution for people who need reliable UV protection in nonpermanent outdoor spaces. The reviewer found the sail well made from 200 GSM HDPE material and noted its ability to block up to 95% of UV rays while lowering temperature by about 15 degrees in shaded areas. For homeowners, gardeners, pet enclosures, or small commercial patios seeking a customizable, breathable canopy, this shade sail offers a solid balance of durability and value.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e95% UV blockage:\u003c\/strong\u003e The 200 GSM HDPE fabric blocks up to 95% of harmful UV rays, providing safer sun protection for people and pets beneath it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature reduction:\u003c\/strong\u003e The sail reduces ambient temperature by up to 15 degrees compared with unshaded areas, creating a noticeably cooler spot on hot days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater and air permeable:\u003c\/strong\u003e The breathable material allows airflow and sheds some water rather than trapping moisture, which helps prevent heat buildup and reduces strain on attachment points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom sizing:\u003c\/strong\u003e The canopy is made to order based on D-ring to D-ring measurements so it can be tailored to specific spaces and mounting configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinforced construction:\u003c\/strong\u003e Stainless steel D-rings, reinforced edges and double-layer stitching improve longevity and resist fraying under regular outdoor use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy installation guidance:\u003c\/strong\u003e The product includes clear installation guidance such as leaving a minimum gap of 0.5 ft from D-rings to poles for optimal tension and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis shade sail is best for homeowners, small business patios, gardeners, and pet owners who want a customizable triangle canopy that balances sun protection with airflow. It works well where a semi-permanent, breathable shade solution is preferred over rigid structures and can be mounted to trees, walls, roofs or poles.\u003c\/p\u003e\n\u003cp\u003ePeople who need a very large, fully waterproof canopy or a rigid shelter should look elsewhere; this sail is water permeable and designed primarily for sun protection and cooling rather than complete rain shelter. Also consider a different product if you need factory standard sizes only and no customization.\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 thanks to 200 GSM HDPE fabric that blocks up to 95% of rays.\u003c\/li\u003e\n\u003cli\u003eNoticeable temperature reduction, often around 10-15 degrees under the canopy compared to full sun.\u003c\/li\u003e\n\u003cli\u003eDurable hardware and reinforced stitching increase longevity and resist fraying in normal outdoor conditions.\u003c\/li\u003e\n\u003cli\u003eCustom sizing ensures a better fit for irregular spaces and tailored installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSize expectations can be misleading for some buyers; several customers noted the sail seemed smaller than expected when received.\u003c\/li\u003e\n\u003cli\u003eNot fully waterproof, so it will not provide complete rain protection in heavy storms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eShape\u003c\/td\u003e\n\u003ctd\u003eTriangle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCustom size\u003c\/td\u003e\n\u003ctd\u003eMade to order, measured D-ring to D-ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e200 GSM HDPE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV protection\u003c\/td\u003e\n\u003ctd\u003eUPF50+, up to 95% UV blockage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreathability\u003c\/td\u003e\n\u003ctd\u003eWater and air permeable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware\u003c\/td\u003e\n\u003ctd\u003eStainless steel D-rings, reinforced edges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e3 year assurance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Custom Size 21' x 21' x 21' White Triangle Sun Shade Sail is a sensible purchase for those who need tailored sun protection with good durability at a reasonable cost. It delivers strong UV defense, noticeable cooling, and flexible installation options, making it good value for patios, pet runs, and small commercial outdoor areas where breathability and a custom fit matter.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this sail fully waterproof?\u003c\/strong\u003e\u003cbr\u003eThe fabric is water and air permeable, so it sheds some moisture but is not designed as a fully waterproof rain shelter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow should I measure for a custom fit?\u003c\/strong\u003e\u003cbr\u003eMeasure from D-ring to D-ring for each side; the manufacturer uses those exact dimensions to make the canopy to fit your space.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be mounted to trees or walls?\u003c\/strong\u003e\u003cbr\u003eYes, the sail can be attached to trees, roofs, walls or poles using appropriate mounting hardware kits and leaving the recommended gap for tension.\u003c\/p\u003e","brand":"Amgo","offers":[{"title":"Default Title","offer_id":48667657863387,"sku":"B08C4T8H6M","price":133.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/91xLpGTSPUL._AC_SL1500_248bd0ac-96ee-42a6-855c-81ebb31f5379.jpg?v=1778698976","url":"https:\/\/gearmusthave.com\/products\/custom-size-21-x-21-x-21-white-triangle-sun-shade-sail-upf50","provider":"GearMustHave","version":"1.0","type":"link"}