Expertly developed for the 2026 collection, the Racer Air Portal Pants are Alpinestars' premier off-road solution for high-temperature performance. Featuring extensive 600D poly-fabric perforations and Stretchnet panels, they deliver maximum airflow and durability on the toughest terrains. This race-fit design includes goat leather inner knees for heat resistance and the secure SX2 auto-lock magnetic buckle for a customized fit.

Key features

Enhanced Premium Airflow: Extensive perforations on the hips, thighs, and lower legs, plus breathable Stretchnet panels on the lower back legs, provide exceptional ventilation and cooling for optimal comfort in warm weather and during intense rides.
Durable Construction: Built from lightweight 600D polyfabric with integrated airflow perforations, these pants are reinforced in high-wear areas like the seat and knees to maximize long-term durability.
Race Fit: Engineered with a sport cut, extensive stretch panels, and a pre-curved leg construction to ensure maximum agility and comfort specifically in the riding position.
Enhanced Mobility: Features stretch ripstop fabric inserts in the back yoke, crotch, and above the knees—utilizing materials from the Supertech line—to deliver premium freedom of movement and rider comfort.

Protection

Goat leather inner knees provide a premium feel, enhanced grip, and essential heat and abrasion resistance.
High-durability 600D polyfabric construction reinforced in high-wear areas, including the seat and knees, for increased abrasion protection.
Secure SX2 auto-lock magnetic buckle and adjustable waist closure ensure a precise, locked-in fit during intense riding.
Silicone inner waistline prevents pant migration to maintain optimal protection positioning.
Ripstop fabric inserts in the back yoke, crotch, and knees provide tear resistance without compromising mobility.

Construction

Ultra-lightweight, stretchable, and durable 600D polyfabric main chassis construction.
Extensive perforations on the hips, thighs, and lower legs for maximized airflow.
Breathable Stretchnet panels on the back of the lower legs for enhanced ventilation and flexibility.
Goat leather inner knee reinforcements for heat and abrasion resistance and improved bike grip.
Stretch ripstop fabric inserts in the back yoke, crotch, and above the knees.
Updated ergonomic sport-cut design with pre-curved leg construction.
Materials are dyed rather than sublimated for enhanced color vibrancy and fade resistance.
Silicone inner waistline to maintain pant positioning.
Zippered fly for secure closure.
SX2 auto-lock magnetic buckle and adjustable waist closure system.
Internal mesh liner for increased comfort.