will this fit left or right knee?

It should fit both knees. It is designed for both of them. The sleeve knee braces are where you have to select which knee if I'm not mistaken.

My thigh 19, knee 15.5, calf 15.1. thigh n calf meets m size, but knee is an l. which one should i ordr?

My knee support has a surprising range of adjustability. That said, my choice would be the large; I hope that helps with your decision. My brace is working very well for alpine skiing and has made it possible to continue in a sport I enjoy.

What are the butterfly strap measurements per size? Got a small and outer straps fit, but inner butterfly straps do not.

I’m not sure what you mean by butterfly straps there are 2 straps that you have to put through a little buckle and bring back around so it adheres to the Velcro. It is stretchy.

Does this knee brace have an opening behind the knee?

No only opening is area around knee cap

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DonJoy Performance Bionic Knee Brace – Hinged, Adjustable Patella Support, Lateral / Medial Ligament (ACL, MCL, LCL), Meniscus, Knee Sprains for Soccer, Basketball, Skiing, Hockey, Running, Water

Product ID: 109763928

Details

Age range (description)
Adult
Brand
DonJoy
Size
S
Specific uses for product
Knee Support
Use for
Knee

🎯Top & bottom stretch webbing closure with TPR pull tabs

🦾Bilateral polycentric hinges with hyperextension stops

🌬️Perforated neoprene for max breathability

₱15180

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Sold byAmazon PhilippinesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🦵 Elevate your game with next-level knee support — because your knees deserve the best!

WRAP GO DESIGN - Ergonomic wrap-around style makes putting on and taking off effortless, perfect for busy professionals on the move.
STAY VISIBLE STAY SAFE - Reflective elements enhance your visibility during low-light runs or evening games, because safety never goes out of style.
PRECISION FIT ZERO SLIP - Dual stretch webbing closures with TPR tabs ensure a snug, customizable fit that stays put during intense activity.
DYNAMIC STABILITY SUPPORT - Bilateral polycentric hinges with hyperextension stops protect your knee from lateral forces and prevent overextension.
ALL DAY COMFORT BREATHABILITY - Perforated neoprene combined with anti-migration tech keeps you cool and comfortable, no matter how hard you push.

The Bionic Knee Brace by DonJoy Performance offers advanced knee stability with bilateral polycentric hinges and hyperextension stops, combined with breathable perforated neoprene and anti-slip technology. Designed for athletes and active professionals, it features adjustable stretch webbing closures for a precision fit, a comfortable wrap-around design, and reflective accents for enhanced low-light visibility.

Specifications

ASIN	B00YBSN130
Age Range Description	Adult
Best Sellers Rank	78,082 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 588 in Knee Braces
Brand Name	DonJoy Performance
Closure Type	Hook, Loop
Colour	Black
Customer Reviews	3.8 3.8 out of 5 stars (142)
Global Trade Identification Number	00888912066396
Included Components	Medical Brace
Item Dimensions	41.1 x 21.3 x 17 centimetres
Manufacturer	DJO Global
Material	Neoprene
Model Number	DP151KB04-BLK-S
Number of Items	1
Part Number	DP151KB04-BLK-S
Product Care Instructions	Hand Wash Only
Size	S
Special Features	Non Slip
Specific Uses For Product	Knee Support
Sport Type	Walking
Target Use Body Part	Knee
UPC	888912066396
Unit Count	1.0 count

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₱15180

Duties & taxes included

In stock

Sold byAmazon PhilippinesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Philippines.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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