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.
ONX Sports - Premium Apparel
Why Heavyweight Compression?
Standard compression shorts are built at 180-220 GSM - fine for general fitness training, not enough for the demands of grappling, rolling, and daily MMA work. The ONX Premium MMA Compression Fight Shorts are built at 300 GSM: more supportive compression, greater abrasion resistance, better opacity, and longer-lasting shape retention than standard compression apparel.
300 GSM vs. Standard 180-220 GSM Compression Shorts
- Enhanced muscle support and stabilization
- Greater abrasion resistance for grappling and combat sports
- Superior shape retention over time
- Fully opaque construction that won't become transparent under stress
- Premium structured feel designed for daily training and competition
MMA Training
BJJ and Grappling
Wrestling
Strength and Conditioning
Competition
Recovery
Teams and Gyms
Construction Detail
Engineered for Combat Sports. Every Detail.
The 72% polyester / 28% spandex blend is engineered to deliver maximum performance across both compression and mobility. The polyester handles moisture, durability, and color retention. The spandex provides the elasticity, compression recovery, and shape retention that holds up through repeated high-output training sessions.
300 GSM Heavyweight Fabric
Significantly more supportive and durable than standard 180-220 GSM compression shorts. More structure, better opacity, longer-lasting shape retention. Built for athletes who train daily and need compression apparel that holds up over time.
Medium-High Compression Fit
A supportive second-skin fit designed to enhance muscle stabilization and support through MMA training, BJJ, wrestling, grappling, and competition. Compression that works during the session and supports recovery after it.
4-Way Stretch Mobility
Moves in every direction without restriction. Built for the full range of motion required in combat sports: kicks, takedowns, guard work, explosive scrambles, and ground transitions.
Anti-Ride Leg Construction
Designed to reduce shifting and bunching during activity. Stays in place through grappling, rolling, and high-output rounds so the shorts are never a distraction during training or competition.
High Abrasion Resistance
300 GSM heavyweight construction handles the friction of grappling and combat sports training without breaking down. Built for daily training volume, mat work, and repeated contact without seam failure or fabric degradation.
Flatlock Stitching and Reinforced Seams
Flatlock construction minimizes chafing at the seams. Reinforced high-stress seam areas handle the demands of grappling and combat sports training without failure across extended training blocks.
Sublimation-Ready Graphics
Compatible with sublimation printing for custom colorways and team designs. Built for gyms and fight teams who want a premium compression short with custom branding - the same heavyweight construction in a custom graphic.
How It Compares
Standard Compression Shorts vs. ONX 300 GSM Fight Shorts
| Standard 180-220 GSM | ONX Premium 300 GSM |
|---|---|
| Lighter fabric with less support | Heavyweight 300 GSM construction with more structure and support |
| Can become transparent under stress | Fully opaque construction that holds under training and competition conditions |
| Lower abrasion resistance for grappling | High abrasion resistance designed for mat work, rolling, and daily combat sports training |
| Shape degrades faster over time | Superior long-term shape retention from the 28% spandex blend and 300 GSM structure |
| General fitness construction | Engineered specifically for MMA, BJJ, wrestling, grappling, and combat sports performance |
| Standard seam construction | Flatlock stitching and reinforced high-stress seams built for grappling and repeated daily use |
Premium MMA Compression - ONX Sports
The ONX Premium MMA Compression Fight Shorts are designed for competitive athletes, combat sports practitioners, and serious daily trainers who need compression apparel that performs like gear. Available in Black, Grey, White, and Black RWB in sizes S through XXL. Sublimation-ready for teams and gyms building custom apparel programs.
Frequently Asked Questions
MMA Compression Fight Shorts - Common Questions
What makes the ONX MMA fight shorts different from standard compression shorts?
The primary difference is fabric weight. Standard compression shorts are built at 180-220 GSM - designed for general fitness. The ONX Premium MMA Compression Fight Shorts are built at 300 GSM, which delivers more support, greater abrasion resistance, better opacity under stress, and longer-lasting shape retention. They are engineered specifically for the demands of MMA, BJJ, wrestling, and grappling - not repurposed fitness apparel.
What fabric are the ONX MMA compression shorts made from?
The shorts are made from a 72% polyester / 28% spandex blend at 300 GSM. The polyester handles moisture management, fast-drying performance, durability, and long-lasting color retention. The spandex provides high elasticity, compression recovery, shape retention, and full range of motion. Together the blend delivers a supportive second-skin fit that holds up through daily combat sports training.
What colors and sizes are available?
The ONX Premium MMA Compression Fight Shorts are available in four colorways: Black, Grey, White, and Black RWB (USA theme). All colorways are available in sizes S, M, L, XL, and XXL. The Black RWB colorway is priced at $79; all other colorways are $69.
Are the ONX compression fight shorts available for custom team orders?
Yes. The ONX Premium MMA Compression Fight Shorts are sublimation-ready, meaning they are compatible with custom graphic printing for team and gym apparel programs. The 300 GSM heavyweight construction and premium finish make them a strong base for custom combat sports apparel. Contact ONX Sports directly for team and custom order inquiries.
