ColourTree Custom Right Triangle Sun Shade Sail 21ft x 21ft x 29.7ft

In this review the ColourTree Custom Right Triangle Sun Shade Sail is evaluated for homeowners and light commercial users who need a durable, high-coverage shade solution. The bottom line: it is for anyone wanting long-lasting sun protection that blocks most UV while remaining breathable. Our review finds the sail's standout attribute is the 190 GSM 100% virgin HDPE fabric treated with a UV stabilized compound, which delivers noticeably better resistance to fading and deterioration than recycled alternatives.

Key Features

• 190 GSM virgin HDPE fabric: Thick, non-recycled material gives a sturdier feel and improved longevity in strong sunlight compared to recycled options.
• UV stabilized compound: Lab-tested for extended UV exposure so the fabric resists drying, tearing and color loss over time.
• 95% UV blockage: Significantly reduces direct sunlight and heat in the shaded area, making patios, pools or carports more comfortable.
• Breathable woven construction: Allows air and water to pass through so rain does not pool and ventilation is preserved under the sail.
• Reinforced edges and stainless steel D-rings: Double-layered seams with heavy stitching protect edges from fraying and provide secure attachment points.
• Three year limited warranty: Warranty coverage provides reasonable assurance of performance under normal weather and use.

Who It's For

This shade sail suits homeowners, pool owners and small commercial spaces needing a robust, UV-resistant canopy that lasts. The right triangle shape and the large 21ft x 21ft x 29.7ft dimensions work well for covering irregular outdoor areas where a rectangular sail would not fit.

It is less appropriate for buyers who need an off-the-shelf hardware kit included, since installation hardware is sold separately, and for those who prefer solid waterproof canopies rather than a breathable mesh that allows water through.

Pros & Cons

Pros

• High quality 190 GSM virgin HDPE gives a durable, non-recycled fabric option.
• Blocks 95% of harmful UV and reduces temperature under the sail for comfort.
• Breathable weave prevents water pooling and maintains airflow on hot days.
• Strong edge construction and stainless steel D-rings make for a secure installation when proper hardware is used.

Cons

• Installation hardware kits are required but sold separately, adding to total cost and effort.
• The breathable mesh is not fully waterproof, so it will not keep heavy rain entirely out.

Specifications

Our Verdict

The ColourTree right triangle shade sail is a solid choice for buyers who want a durable, UV-resistant canopy that stands up to sun exposure and provides large-area coverage. Its heavy 190 GSM virgin HDPE fabric and reinforced construction deliver long-term value, though you should plan for separate hardware and accept a breathable mesh rather than a waterproof cover.

Frequently Asked Questions

Does this sail block most harmful sun rays?
Yes, the woven fabric blocks about 95% of harmful UV and reduces heat in shaded spaces.

Is the sail waterproof?
No, the breathable mesh is designed to allow water through to avoid pooling, so it is water resistant but not fully waterproof.

Are mounting kits included?
No, installation hardware kits and cables are sold separately and recommended for best performance.