Alpinestars Racer Lone Pants

Racer pants in the Lone graphic

The Racer Lone Pants are Alpinestars' Racer motocross pants in the low-key Lone colourways, one of them plain black. The Racer range sits below Techstar and Supertech, aimed at club racing, practice and trail riding: a lightweight 600D polyfabric chassis reinforced at the seat and knees, stretch ripstop inserts at the back yoke, crotch and above the knees, ventilated Stretchnet across the full back of the lower legs, and goat leather inner knees for heat and abrasion against the bike.

Sizing and fit

Waist sizes 28 to 40 in two colourways: Black and Gray/Purple. Sport-cut race fit with pre-curved legs; it runs close, so go up a size if you're between sizes or wearing knee guards. SX2 auto-locking magnetic buckle with adjustable waist, silicone inner waistline and a zip fly.

Match it up

Made for the Racer Lone Jersey in the same colourways. There's a perforated hot-weather version, the Racer Air Lone Pants. Add Radar Gloves and SX-1 v2 Knee Guards, and kids can match in the Youth Fluid Lone Pants.

Built for motocross riders who demand race-ready mobility and durability, the Racer Lone Pants deliver a performance-focused fit for track and off-road riding. Constructed from lightweight 600D polyfabric with stretch ripstop inserts, vented Stretchnet lower-leg panels, and goat leather inner knees, they balance airflow, flexibility, and lasting control. An ergonomic sport cut with a secure magnetic waist closure keeps comfort and fit dialed in through every session.

• Race fit: Sport cut and pre-curved leg shaping support an aggressive riding position while helping the pants follow natural body movement on the bike.
• Ventilation: Targeted lower-leg airflow helps manage heat and maintain riding comfort through demanding motocross sessions.
• Waist lock: Secure closure system helps keep the pants stable and in place for a confident, distraction-free fit lap after lap.
• Reinforced high-wear zones at the seat and knees provide targeted durability in critical abrasion areas.
• Goat leather inner knee panels deliver added heat and abrasion resistance on the inner leg contact area.
• 600D polyfabric main chassis with stretch ripstop fabric inserts at the back yoke, crotch area, and above the knees.
• Ventilated Stretchnet panels across the full back of the lower legs.
• SX2 auto-locking magnetic buckle with an adjustable waist closure.
• Silicone inner waistline.
• Zippered fly.