{"product_id":"shademart-21-ft-x-23-ft-grey-sun-shade-sail-upf50-rectangle-durable","title":"ShadeMart 21 ft x 23 ft Grey Sun Shade Sail UPF50 Rectangle - Durable","description":"\u003cp\u003eOur review of the ShadeMart 21 ft x 23 ft Grey Sun Shade Sail finds it best suited for homeowners and gardeners who need broad, breathable sun protection rather than a waterproof canopy. The biggest reason to buy is its combination of woven HDPE fabric and stainless steel corner D rings, which deliver a durable, UV-blocking shade solution that is also water and air permeable. This makes it a practical choice for patios, carports, vegetable beds and poolside areas where airflow and reduced temperatures matter.\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, tear-resistant surface that blocks up to 95% of harmful UV rays while remaining breathable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel D rings:\u003c\/strong\u003e heavy-duty attachment points on all corners allow secure mounting to poles, walls or trees with proper hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater and air permeable:\u003c\/strong\u003e lets rain and breeze pass through to prevent pooling and improve ventilation under the canopy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom size options:\u003c\/strong\u003e available in a range of sizes so buyers can order a sail that fits unique patio or carport dimensions when measured accurately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRectangle styling:\u003c\/strong\u003e a clean, versatile shape that integrates with existing outdoor decor while providing broad coverage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStitching and webbing:\u003c\/strong\u003e heavy white webbing and reinforced stitching at edges improve long-term durability and resistance to stress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe ShadeMart rectangle sail is aimed at people who want effective sun protection and improved outdoor comfort without the weight and humidity buildup of non-breathable covers; it is ideal for patios, pergolas, garden beds and carports where reducing temperature and UV exposure is the priority. Buyers who need a breathable, sculpted look that also functions as a decorative addition will appreciate the multiple color choices and rectangle shape.\u003c\/p\u003e\n\u003cp\u003eThis product is not for those seeking a fully waterproof canopy or a temporary event tarp; customers who require total rainproofing or sealed seams should consider purpose-built waterproof covers instead. Also, accurate measurement is important if ordering a custom size, since manual measurements can cause slight variation in sail dimensions.\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 for noticeably cooler, shaded areas.\u003c\/li\u003e\n\u003cli\u003eBreathable woven HDPE reduces heat build-up and prevents water pooling.\u003c\/li\u003e\n\u003cli\u003eStainless steel D rings and heavy webbing provide solid, reliable attachment points.\u003c\/li\u003e\n\u003cli\u003eGood stitching quality and edge reinforcement increase longevity in outdoor use.\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 area dry during heavy rain.\u003c\/li\u003e\n\u003cli\u003eColor and exact size may vary slightly due to manual measurement and fabric production.\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\u003e21 ft x 23 ft\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\u003eAttachment\u003c\/td\u003e\n\u003ctd\u003eStainless steel corner D rings with heavy 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\u003eFor anyone needing a long-lasting, breathable sun shade that reduces temperature and protects from UV exposure, the ShadeMart 21 ft x 23 ft rectangle sail is a sensible, value-oriented choice. Its sturdy HDPE fabric, reinforced corners and permeability make it well suited to patios, carports and gardens, provided buyers accept that it is not intended as a waterproof cover.\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 breathable so water passes through rather than forming a waterproof barrier.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be attached to trees or poles?\u003c\/strong\u003e\u003cbr\u003eYes. The sail includes stainless steel D rings and heavy webbing and can be mounted to poles, trees, walls or roofs with the proper hardware.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it block the sun effectively?\u003c\/strong\u003e\u003cbr\u003eYes. The woven HDPE material blocks up to 95% of harmful UV rays and helps lower temperatures in the shaded area.\u003c\/p\u003e","brand":"ShadeMart","offers":[{"title":"Default Title","offer_id":48196154720475,"sku":"B0BTTYNPSR","price":220.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/816THzWgLIL._AC_SL1500_38f3a3c9-f0bc-4971-a79c-9ca000d2fb4b.jpg?v=1770313227","url":"https:\/\/gearmusthave.com\/products\/shademart-21-ft-x-23-ft-grey-sun-shade-sail-upf50-rectangle-durable","provider":"GearMustHave","version":"1.0","type":"link"}