ColourTree CTSLR Custom Size 21ft x 23ft Brown Sun Shade Sail Canopy

In this review we test the ColourTree CTSLR 21' x 23' brown sun shade sail to see whether it delivers durable, high-coverage protection for patios, pools and carports. The bottom line: this shade sail is aimed at homeowners and light commercial users who need a large, breathable canopy that blocks sun effectively and holds up to repeated summer exposure; its standout trait is the thick 190 GSM virgin HDPE fabric treated with a UV stabilized compound, which translates to longer life and reliable UV protection compared with recycled materials.

Key Features

• 190 GSM virgin HDPE: Thick, non-recycled fabric resists tearing and wear for longer outdoor service life.
• UV stabilized compound: Fabric is treated to resist drying, fading and damage from long sun exposure.
• 95% UV blockage: Blocks most harmful UV rays and lowers ambient temperatures in shaded areas.
• Breathable woven fabric: Allows air and rainwater to pass through, preventing pooling and improving comfort beneath the sail.
• Reinforced seams and stainless fittings: Double layered stitched edges and D-rings with heavy stitching provide durable attachment points.
• 3 year limited warranty: Warranty offers peace of mind under normal weather and usage conditions.

Who It's For

This shade sail is best for homeowners with patios, pools, balconies or carports who want a large, effective shade solution that is easy to install and low maintenance. It suits buyers who prioritize long-term weather resistance because the 190 GSM virgin HDPE and UV stabilization are designed to withstand strong sun and repeated use.

It is less ideal for those who need an all-weather waterproof canopy or who cannot provide solid anchor points; hardware kits are sold separately and users should choose metal cables and proper mounting hardware rather than light ropes for best performance.

Pros & Cons

Pros

• Very good sun protection with 95% UV blockage that significantly cools shaded areas.
• Durable construction from 190 GSM virgin HDPE and reinforced seams for long service life.
• Breathable fabric prevents water pooling and improves airflow under the sail.
• Stainless steel D-rings and extra heavy stitching make mounting points reliable.

Cons

• Installation hardware is not included, so additional cost and proper anchors are required.
• Not a fully waterproof canopy; some users report water resistance but not total waterproofing.

Specifications

Size	Custom 21' x 23'
Material	190 GSM 100% virgin HDPE
UV Protection	Blocks 95% of UV
Construction	Double layered reinforced stitched seams with stainless steel D-rings
Breathability	Woven fabric allows air and water to pass through
Warranty	3 years limited

Our Verdict

The ColourTree CTSLR 21' x 23' brown shade sail is a solid choice for anyone needing dependable sun protection and a durable, low-maintenance canopy. Its 190 GSM virgin HDPE and UV-stabilized treatment make it good value for long-term outdoor use, provided buyers budget for proper hardware and accept that the sail is breathable rather than fully waterproof.

Frequently Asked Questions

Is installation hardware included?
No. Installation hardware kits are sold separately and high-quality cables and fittings are recommended.

Will it keep rain out?
The fabric is breathable and resists pooling, but it is not intended as a fully waterproof cover; expect some water permeability.

How long will the sail last in sun exposure?
The manufacturer reports laboratory UV testing and a treated compound for extended life; a 3 year limited warranty covers normal weather and usage.