ColourTree 17ft x 21ft Red Sun Shade Sail Canopy - Heavy Duty UV Block

Our review of the ColourTree 17' x 21' Red Sun Shade Sail Canopy finds it best suited for homeowners and small commercial spaces that need strong sun protection without a rigid structure. The single biggest reason to choose this sail is its 190 GSM 100% virgin HDPE fabric treated with UV stabilized compound, which the brand says was lab tested for long-term sun exposure; that thicker material delivers reliable shade and cooling while resisting fading for extended outdoor use. Installation is straightforward if you prepare proper hardware and attachment points, and the breathable weave keeps water from pooling during rain.

Key Features

• 190 GSM Virgin HDPE: The thick, non-recycled fabric is designed to resist tearing and fading and offers more durability under sun exposure than recycled alternatives.
• 95% UV Blockage: The woven fabric blocks most harmful UV rays to reduce heat and sun damage in shaded areas like patios and pools.
• Breathable Design: The weave allows air and water to pass through so the sail cools beneath and prevents water pooling after rain.
• Reinforced Edges and D-rings: Double layered seams and stainless steel D-rings provide stronger corners for secure attachment and help reduce fraying.
• UV Stabilized Compound: Fabric treatment aims to slow drying out and color loss so the sail keeps its appearance longer in direct sun.
• 3 Year Limited Warranty: Warranty coverage under normal weather and use offers added reassurance for buyers.

Who It's For

This shade sail serves homeowners with patios, pools, balconies or carports who need a substantial fabric canopy that blocks most UV and reduces temperature under the cover. It is also a fit for small commercial areas seeking an affordable, breathable shade option without permanent construction.

Those who want a fully rigid or waterproof canopy, or who lack secure posts or walls for tensioned installation, should look elsewhere. Proper shade sail hardware is required and sold separately, so buyers who expect a plug-and-play solution including attachment kits may find the preparation extra work.

Pros & Cons

Pros

• Thicker 190 GSM virgin HDPE fabric offers stronger resistance to sun damage and color fading.
• Blocks 95% of UV to noticeably reduce sun exposure and heat under the sail.
• Breathable weave prevents water pooling and allows airflow for cooler shade.
• Reinforced seams and stainless steel D-rings improve durability at stress points.

Cons

• Installation requires separate hardware and proper non-nylon cables, adding cost and effort.
• Customer feedback on long-term durability is mixed, with some reports of material deterioration in extreme conditions.

Specifications

Our Verdict

The ColourTree 17' x 21' Red Sun Shade Sail is a solid choice for people who want effective UV reduction and a breathable, heavy duty fabric canopy without building a permanent structure. For the price it offers good value when paired with quality hardware, though buyers should be prepared to install proper cables and monitor the sail in very harsh wind or weather conditions.

Frequently Asked Questions

Does the sail come with installation hardware?
No. Installation hardware kits and cables are required and sold separately; the manufacturer recommends using proper cables and non-nylon fittings for best performance.

How much UV protection does it provide?
The woven fabric is rated to block about 95% of harmful UV rays, reducing direct sunlight and heat beneath the canopy.

Is the fabric resistant to fading?
The 190 GSM virgin HDPE material is treated with a UV stabilized compound and tested for long-term sun exposure to slow fading and extend lifespan.