Blue Jay Adjustable Knee Support – Open Patella, Black, L/XL

Blue Jay Adjustable Knee Support – Open Patella | Black | Large/X-Large (16–19" Knee) | 2 Adjustable Straps | Nylon-Lined Neoprene | SKU BJ215221LGXL

Size note: This listing is for Large/X-Large only, fitting a knee circumference of 16" to 19". Measure around the center of the kneecap before ordering to confirm fit.

The Blue Jay Adjustable Knee Support combines open patella stabilization with the warmth and compression of nylon-lined neoprene. The open patella design keeps the kneecap free and properly tracked during movement, reducing discomfort from patellar instability, arthritis, and general knee strain. Two adjustable hook-receptive straps wrap around the thigh and calf for a customized, secure fit that stays in place during daily activity. The slip-on neoprene construction is easy to apply, and the hook-receptive surface allows the straps to be positioned exactly where you need them. Suitable for everyday wear, post-injury support, and activity-related knee compression. Color: Black. Country of Origin: China.

Key Features

• Open patella design — stabilizes and protects the kneecap while keeping it free during movement
• Two adjustable straps — wrap around thigh and calf for a customized, secure fit
• Hook-receptive neoprene — straps position exactly where needed for personalized compression
• Nylon-lined neoprene construction — provides warmth, flexibility, and compression
• Slip-on design — easy application and removal
• Size: Large/X-Large — fits knee circumference 16" to 19"
• Color: Black
• Country of Origin: China

Ideal For

• Patellar instability and kneecap tracking issues
• Knee arthritis and joint pain relief
• Post-injury or post-surgical knee support
• Sports and activity-related knee strain
• General knee compression, warmth, and stabilization during daily activities

Sizing

• Measure around the center of the kneecap (over the patella)
• Large/X-Large: 16" to 19" knee circumference
• If you are between sizes, size up for comfort
• If you need a different size, please check our store for other available sizes

Specifications

• SKU: BJ215221LGXL
• Brand: Blue Jay
• Color: Black
• Size: Large/X-Large (fits 16"–19" knee circumference)
• Material: Nylon-lined neoprene
• Closure: Two adjustable hook-receptive straps
• Design: Open patella (open knee)
• Product Weight: 1 lb
• Country of Origin: China
• Condition: New

Frequently Asked Questions

How do I measure for the correct size?
Measure around the center of your kneecap (directly over the patella) with your leg slightly bent. This Large/X-Large size fits a knee circumference of 16" to 19". If your measurement falls at the top of a size range, size up for a more comfortable fit. Do not measure the thigh or calf — the knee circumference measurement is the correct reference point for this support.

What is an open patella design and why does it matter?
An open patella design has a cutout over the kneecap, leaving it exposed rather than covered. This serves two purposes: it allows the patella to move naturally during flexion and extension without being compressed by the brace material, and it helps guide the kneecap into proper alignment during movement. This design is particularly beneficial for users with patellar instability, chondromalacia, or general kneecap discomfort.

Can I wear this support during exercise or sports?
Yes. The two adjustable straps and hook-receptive neoprene are designed to stay secure during movement, making this support suitable for low to moderate activity including walking, light exercise, and daily tasks. For high-impact sports or activities requiring significant lateral stability, a more rigid hinged knee brace may be more appropriate.

Can I wear this over clothing?
This support is designed to be worn directly against the skin for best compression and fit. Wearing it over thin clothing (such as compression tights or thin leggings) is possible but may reduce the effectiveness of the neoprene compression and cause the support to shift during use.