ColourTree 21 ft x 23 ft x 31.1 ft Turquoise Right Triangle Shade Sail

In this review we look at the ColourTree right triangle shade sail, a heavy-duty sun canopy intended for patios, pools, balconies and carports. The bottom line is simple: this sail is for anyone who wants a large, durable UV shield that keeps sun off windows and outdoor living areas while still allowing airflow. The single biggest reason to buy is its 190 GSM 100% virgin HDPE fabric treated with a UV stabilized compound, which the maker says is lab-tested for extended resistance to fading and tearing.

Key Features

• 190 GSM Virgin HDPE: The thick, non-recycled fabric provides a sturdy feel and is designed to resist tearing and rapid degradation under long sun exposure.
• UV Stabilized Compound: Fabric treated to resist drying out and fading, which helps preserve color and strength through extended UV exposure.
• 95% UV Blockage: Blocks the majority of harmful UV rays to reduce heat and protect shaded areas, making it useful for patios and poolside shade.
• Breathable Woven Fabric: Allows air and water to pass through so rain does not pool on the canopy and shaded areas stay ventilated.
• Reinforced Edges and Stainless D-rings: Double-layer stitched seams and heavy corner stitching with stainless steel D-rings give secure anchor points for installation.
• 3 Year Limited Warranty: Warranty coverage under normal weather and usage offers added confidence in expected durability.

Who It's For

This shade sail is best for homeowners and property managers who need a large, permanent-looking shade solution that can be tensioned between posts, walls or trees and who value long-term UV resistance. It is particularly suited to patios, poolside seating, carports and any outdoor area where reducing direct sun and heat is a priority.

People who want a quick pop-up or fully waterproof canopy should look elsewhere; the sail is breathable and allows water through rather than creating a dry shelter in heavy rain. Also, installation hardware is sold separately, so buyers without mounting points or tools should plan accordingly.

Pros & Cons

Pros

• Very durable feel from 190 GSM virgin HDPE and heavy stitching that customers say holds up in strong sun and wind.
• Effective sun protection with roughly 95% UV blockage that noticeably reduces sunlight and heat in shaded areas.
• Breathable design prevents water pooling and promotes airflow, keeping shaded areas comfortable.
• Stainless steel D-rings and reinforced seams simplify secure tensioning and reduce edge fraying.

Cons

• Hardware is not included, so buyers must purchase appropriate shade sail kits and cables separately for a complete installation.
• Because it is breathable, it will not provide a dry cover in heavy rain the way a waterproof tarp would.

Specifications

Shape	Right triangle
Size	21 ft x 23 ft x 31.1 ft
Color	Turquoise
Material weight	190 GSM
Fabric composition	100% virgin HDPE (UV stabilized)
UV protection	Approximately 95% blockage
Warranty	3 years limited

Our Verdict

The ColourTree right triangle shade sail is a strong choice for anyone who needs long-lasting sun protection with good airflow and minimal maintenance. Its virgin 190 GSM fabric, reinforced seams and stainless D-rings make it good value for outdoor use where UV resistance and durability matter, provided you plan to buy mounting hardware separately.

Frequently Asked Questions

Does the sail block most UV?
Yes, the fabric is designed to block about 95% of harmful UV rays, reducing sun and heat in shaded areas.

Is it waterproof?
No, the woven HDPE fabric is breathable and allows water through, so it prevents pooling but does not create a dry shelter in heavy rain.

Are installation fittings included?
No, hardware kits and cables are sold separately and each corner requires an appropriate cable or kit for secure mounting.