The ASSOS EQUIPE RS Alleycat Shell Jacket S11 is the ultimate racing shell for cyclists who refuse to let wind and changing weather slow them down. Ultra-lightweight, highly packable, and aerodynamic, it delivers reliable protection from wind and light rain while maintaining exceptional breathability and the next-generation AEPD 11 racingFit developed with WorldTour riders.
The ASSOS EQUIPE RS Alleycat Shell Jacket S11 is the ultimate racing shell for cyclists who refuse to let wind and changing weather slow them down. Ultra-lightweight, highly packable, and aerodynamic, it delivers reliable protection from wind and light rain while maintaining exceptional breathability and the next-generation AEPD 11 racingFit developed with WorldTour riders.
The ASSOS EQUIPE RS Alleycat Shell Jacket S11 represents the highest level of wind protection within the ASSOS Racing Series. Redesigned around the new S11 platform, it delivers an even more aerodynamic fit, improved breathability, and exceptional packability, making it the ideal emergency shell for racing, training, and fast-paced rides in unpredictable weather.
Designed for demanding cyclists, it provides effective protection against wind, light rain, and road spray without compromising freedom of movement or performance. Every fabric panel has been strategically body-mapped to maximize weather protection where needed while maintaining excellent ventilation during high-intensity efforts.
The front panel, shoulders, and upper back feature Diamond ULTRA, a two-layer softshell fabric that combines excellent wind protection, water repellency, stretch, and breathability. It shields the rider from cold air and changing weather while maintaining comfort during demanding efforts.
The lower torso and back panels incorporate MIG, an ultralight fabric that reduces weight and bulk while enhancing freedom of movement and aerodynamic efficiency.
The sleeves are constructed from 575CX, a highly elastic and breathable textile that follows the body's movements naturally while helping regulate temperature during climbs, sprints, and long training sessions.
This carefully engineered combination of fabrics creates an optimal microclimate, allowing excess heat and moisture to escape without sacrificing protection.
The jacket features the latest AEPD 11 racingFit, developed with feedback from WorldTour athletes. The ergonomic cut is optimized for the riding position, reducing excess fabric and improving aerodynamic efficiency while delivering a true second-skin feel.
The Double-Slide zipper allows the jacket to be opened from either the top or bottom, making it easy to regulate airflow and access rear jersey pockets without removing the shell. When the weather improves, the jacket packs down into an extremely compact size, fitting easily into a standard cycling jersey pocket.
| Category | High-performance cycling shell jacket |
| Fit | AEPD 11 racingFit |
| Recommended Temperature | 12°C – 20°C |
| Wind Protection | ★★★★★ |
| Water Protection | ★★★☆☆ |
| Breathability | ★★★☆☆ |
| Main Fabric | Diamond ULTRA 2-layer Softshell |
| Additional Fabrics | 575CX and ultralight MIG |
| Water-Repellent Treatment | Eco-DWR |
| Zipper | Double-Slide Zip |
| Additional Features | Reflective details |
The ASSOS EQUIPE RS Alleycat Shell Jacket S11 is the perfect choice for cyclists seeking an elite-level protective shell that combines outstanding wind resistance, lightweight construction, and race-ready aerodynamics. Developed using premium technical fabrics and WorldTour-inspired ergonomics, it offers dependable protection in unpredictable weather while maintaining the speed, comfort, and freedom of movement demanded by serious riders.
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