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Vented, stretch-paneled MX pants for trail days and practice motos.
Airflow and mobility for long days on the trail or the practice track.
Supportive multi-panel construction balances flexibility and structure β built for practice days, trail rides, and everything between.
Ventilated panels keep air moving on warm-weather motos, so you stay cool deep into the ride.
Stretch zones in key motion areas make seated-to-standing transitions feel natural, lap after lap.
Tapered lower leg tucks cleanly into MX boots β no bulk, no bunching, no snag points.

High-performance motocross pants designed for durability, mobility, and consistent comfort in demanding riding conditions.
These motocross race pants feature a supportive multi-panel chassis that balances flexibility and structure for aggressive riding. Abrasion-resistant materials help manage roost, slide impacts, and repeated use on technical tracks while maintaining a comfortable feel during practice or race days.
Stretch zones in key motion areas allow natural transitions between seated and standing riding positions. Ventilated panels assist with airflow and heat management in warm conditions, while the tapered lower leg integrates cleanly with boots to reduce bulk and bunching.
Built from durable synthetic fabrics with reinforced stitching, these pants are engineered to withstand frequent riding and high-contact areas such as the saddle and inner knee. The articulated knee design is compatible with guards and braces, making them suitable for motocross, off-road, and trail applications.
MX pants are sized by waist in inches. Measure at your natural waist, over the base layers you ride in.
| Size | Waist | Waist (cm) |
|---|---|---|
| 28 | 28β³ | 71 cm |
| 30 β selected | 30β³ | 76 cm |
| 32 | 32β³ | 81 cm |
| 34 | 34β³ | 86 cm |
| 36 | 36β³ | 91 cm |
Size up one. The articulated knee clears guards, but braces need the extra room through the thigh and knee.
Go up. MX pants ride at the natural waist with an adjustable closure β a size up cinches down, a size down doesn't stretch out.
The lower leg is tapered to slide inside your boots, not over them. No bunching at the buckles.
Three 100% pants, three jobs β trail days, race weekends, and the youth gate.
| Pant | Best For | Fit | Durability | Ventilation | Mobility |
|---|---|---|---|---|---|
| Airmatic Black Camo β this page | Trail & Practice | Mens, waist sizing | |||
| R-Core X | Race Flagship | Mens, waist sizing | |||
| Youth R-Core | Youth Race | Youth |
The 100% logo comes from the question every racer gets asked: how much effort do you give? Worn by motocross legends in the late '70s and reborn in San Diego as a premium racing brand, 100% now builds complete race kits β the most iconic goggles in motocross, plus gloves, jerseys, and the pants on this page.
Shop all 100% βΊ4051 Judah St, Outer Sunset, San Francisco. Bring your knee braces β try the pants over them and walk out race-ready.
