Built to Breathe Under Pressure
Designed for maximum airflow and lightweight comfort during intense training sessions. Breathable construction helps regulate heat, reduce distractions, and keep you comfortable from warm-up to final round.
Recover Faster Between Sessions
Impact-absorbing protection reduces cumulative damage so your body can recover and keep progressing.
Train Longer. Stay Protected.
Designed to absorb impact and support your joints so you can push harder without breaking down.
Precision Glove Striking Control
Ergonomic glove design keeps your wrist and knuckles aligned for consistent, accurate strikes.
Moisture-Wicking Performance
Pulls sweat away from the body
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.
Coaches Line — Maximum Protection
The Highest-Protection Mitt in the ONX Coaches Line
The ONX Heavy Hitter Mitts are the maximum-protection mitt in the Coaches Line. The larger 7.25 x 10 x 3 inch profile gives athletes a bigger target and gives coaches significantly more cushion between the strike and the hand. The multi-layer impact foam disperses force on contact, reducing sting and hand fatigue across extended rounds. The raised palm grip keeps the mitt stable and secure without requiring the coach to overgrip through every combination.
Built for MMA pre-fight warmups, power-focused boxing and kickboxing sessions, bare-knuckle-style striking preparation, and fight-camp coaching where impact volume is high and hand protection is non-negotiable.
MMA Pre-Fight Warmups
Power Punch Conditioning
Boxing & Kickboxing Power Rounds
Muay Thai Striking
Bare-Knuckle Preparation
Fight Camp Coaching
High-Volume Pad Sessions
Construction Detail
Built to Protect the Coach. Round After Round.
Every feature in the Heavy Hitter Mitts addresses one problem: what happens to a coach's hands when they hold for a big puncher over an extended session. The foam reduces sting. The profile distributes force. The palm grip keeps the mitt controlled without the coach fighting it through every combination.
Larger 7.25 × 10 × 3 in Profile
More surface area means more foam between the strike and the coach's hand. Bigger target for the athlete. More protection for the coach.
Multi-Layer Impact Foam
Stacked foam system disperses force across the full striking surface. Reduces sting, cuts harsh feedback, and keeps the coach's hands functional through long rounds and multi-session fight camps.
Raised Palm Grip
Creates a natural grip point inside the mitt. Less effort to hold securely. Less hand strain per round — critical when holding for power hitters at high volume.
Coach-Controlled Fit
Stays stable in the hand through combinations without the coach needing to overgrip. When the mitt doesn't fight back, the coach can focus on timing, target placement, and athlete feedback.
PU Leather Composite Exterior
Rip- and tear-resistant surface designed for repeated heavy impact. Water-resistant external protection. Built for daily gym use without breaking down.
Moisture-Wicking Interior
Helps manage sweat and protect the internal foam system during high-output training. Extends product life through repeated daily use.
How It Compares
Standard Mitts vs. ONX Heavy Hitter Mitts
| Standard Focus Mitts | ONX Heavy Hitter Mitts |
|---|---|
| Smaller or thinner target profile | Larger 7.25 × 10 × 3 in build — more protection, bigger target |
| Basic foam padding | Multi-layer foam system built to absorb heavier, repeated impact |
| Coach may need to overgrip during hard rounds | Raised palm grip secures the mitt with less effort and less hand strain |
| Designed for general mitt work | Built specifically for big hitters, fight camps, and high-impact striking sessions |
| Limited moisture management | Moisture-wicking interior protects the foam system and improves long-term performance |
| Standard construction for casual use | Reinforced high-impact stitching in key stress zones for product longevity |
Maximum Protection — ONX Coaches Line
The Heavy Hitter Mitts carry the highest protection rating in the ONX Coaches Line. Built for coaches and serious trainers who need equipment that can handle real power — in the gym, in fight camp, and on the road to a title shot.
Frequently Asked Questions
Heavy Hitter Mitts — Common Questions
What makes the ONX Heavy Hitter Mitts different from standard focus mitts?
The Heavy Hitter Mitts have a significantly larger profile — 7.25 in wide x 10 in long x 3 in thick — compared to a standard focus mitt. That larger build gives athletes a bigger striking target and gives the coach more foam and surface area between the punch and the hand. They are built specifically for coaches holding for bigger, harder-hitting athletes where standard mitts provide insufficient protection.
How do the Heavy Hitter Mitts compare to the ONX Air Mitts and Panther Mitts?
The three mitts serve different roles in the Coaches Line. The Air Mitts (10 oz) are the lightweight speed option for accuracy, timing, and fast combinations. The Panther Mitts (12 oz) are the technique mitt — curved catching surface, denser foam, built for punch turnover and realistic feedback. The Heavy Hitter Mitts (15 oz) are the power option — maximum profile, maximum foam, built for big hitters, fight camps, and high-impact pad rounds.
What disciplines are the Heavy Hitter Mitts built for?
These mitts are built for MMA pre-fight warmups, boxing and kickboxing power rounds, Muay Thai striking sessions, bare-knuckle-style striking preparation, and any fight-camp environment where athletes generate serious impact. They are ideal for coaches working with heavyweight athletes, power punchers, or high-volume training programs.
