ONX Precision Line MMA knee guards in gray, front view
ONX Precision Line MMA knee guards in black, front view
ONX Precision Line MMA knee guards in white, front view
ONX Precision Line MMA knee guards in black, kneecap close-up
ONX Precision Line MMA shin guards and knee guards in gray, worn together, front view
ONX Precision Line MMA shin guards and knee guards in black, worn together, front view
ONX Precision Line MMA shin guards and knee guards in white, worn together, front view
Archie Colgan in ONX Precision Line MMA shin guards, knee guards and headgear in white, side view
ONX Precision Line MMA knee guards in gray, front view
ONX Precision Line MMA knee guards in black, front view
ONX Precision Line MMA knee guards in white, front view
ONX Precision Line MMA knee guards in black, kneecap close-up
ONX Precision Line MMA shin guards and knee guards in gray, worn together, front view
ONX Precision Line MMA shin guards and knee guards in black, worn together, front view
ONX Precision Line MMA shin guards and knee guards in white, worn together, front view
Archie Colgan in ONX Precision Line MMA shin guards, knee guards and headgear in white, side view

MMA Knee Guards (L&R Pair) I ONX Precision Line

Throw Real Knees. Protect Your Partner.
The ONX Precision Knee Guard locks over the kneecap with the same ONX foam system as the Premium Line, in a durable PU shell built for daily training.
  • TRUSTED BY WORLD-CLASS FIGHTERS
  • FREE EXCHANGES
  • FAST SHIPPING
$159.99
/
Shipping calculated at checkout.
Size chart

Choose your knee guard size from your calf and thigh measurements. The guards have a strap below the knee and a strap above the knee, so both measurements matter.

Size Calf Thigh
S/M 30 to 40 cm
(11.8 to 15.7 in)		 34 to 42 cm
(13.4 to 16.5 in)
L/XL 40 to 50 cm
(15.7 to 19.7 in)		 42 to 50 cm
(16.5 to 19.7 in)

How to measure: wrap a soft tape around the widest part of your calf, then around your thigh just above the knee. If you are between sizes, size up.

Buying with shin guards? Shin guard size S or M goes with the S/M knee guard. Shin guard size L or XL goes with the L/XL knee guard.
  • In stock, ready to ship
  • Backordered, shipping soon
Recover Faster Between Sessions
Recover Faster Between Sessions
Impact-absorbing protection reduces cumulative damage so your body can recover and keep progressing.
Consistently Rated 5-Stars
Consistently Rated 5-Stars
Trusted by fighters across gyms, amateurs, and professionals who demand gear that holds up under real training.
Train Longer. Stay Protected.
Train Longer. Stay Protected.
Designed to absorb impact and support your joints so you can push harder without breaking down.
Trusted by World-Class Fighters
Trusted by World-Class Fighters
Used by UFC athletes like Justin Gaethje, Kamaru Usman, Cory Sandhagen and elite coaches at the highest level.

Trevor designed the knee pad system to lock the kneecap in place, preventing rotation while keeping bone contact away from your training partner—allowing athletes to throw real knees without compromising safety.

A pro-grade PU shell over a multi-layer foam core absorbs and disperses impact, while the locking design holds the kneecap in position so bone stays off your training partner.

Materials
• Outer: Premium PU shell
• Core: Multi-layer impact foam
• Inner: Breathable comfort liner

Key Features
• Protective knee shield providing targeted coverage for high-impact training
• Contoured design for added knee protection and stability
• Lightweight, secure fit that stays in place, so you can focus on training, not readjusting

Shin guards sold separately.

Domestic US Orders 

Turnaround Time

Every order is built for champions—give us time to prep and ship your gear. Quality takes time. Performance demands precision.

Carriers

We team up with trusted carriers to get your order to you, fast and secure:

  • USPS
  • UPS
  • FedEx

Tracking Info

As soon as your gear hits the road, we’ll send you a tracking number—if the carrier provides one. (Heads up: USPS First Class sometimes ships silent—no tracking on that option.)

Shipping Costs

Shipping rates are based on weight, location, and carrier.  location. You’ll see your full shipping cost before you confirm your order—no surprises.

International Orders

Yes, we ship internationally. This is fight-grade equipment for a global standard of athlete*. 

We partner with DHL Express Worldwide for all international shipping.

We’ve chosen DHL as our preferred international shipping carrier because it offers superior tracking and reliability—helping to ensure your gear arrives safely and on time. 

Duties, Taxes, and Fees

Your ONX gear is crafted to perform at the highest level — wherever you train. Please note that customs duties, taxes, or import fees may be applied by your country’s authorities. These charges are not included in your order total and are the responsibility of the recipient upon delivery.

*Compliance with international shipping laws may apply.

MMA Knee Guards That Lock In and Stay Put

The ONX Precision Line knee guard uses an integrated locking system that holds the kneecap in position and prevents twisting and sliding—so you can throw real knees without compromising your partner's safety.

A durable PU shell over the same ONX multi-layer foam used in the Premium Line absorbs and disperses impact, round after round.

Sold as a left and right pair. Shin guards are sold separately—or get both in the MMA Shin & Knee Guards Bundle.

Knee Guard Sizing: S or M shin guard → SM/MED knee guard. L or XL shin guard → L/XL knee guard.

ENGINEERED WITH PURPOSE

"Train your knees the way you fight, with purpose, precision, and confidence. These guards were built to protect your partner without holding back your development."
-Trevor Wittman

You may also like

Recently viewed