Assos EQUIPE RS Alleycat S11 Wind Jacket – Ultralight Windproof and Water-Resistant Race Shell

The Assos EQUIPE RS Alleycat S11 represents the pinnacle of technical road cycling apparel. This race wind jacket has been developed to offer the perfect balance of wind protection, water resistance, aerodynamics, and breathability, making it the ideal garment for days with variable weather conditions.

Completely redesigned for the S11 generation, the new Alleycat introduces updated fabrics, a more anatomical construction, and an even more aerodynamic fit, offering a second-skin feel developed from WorldTour competition experience.

Once folded, it takes up the space of a fist, making it perfect to always carry with you during spring, autumn rides, or as an additional protective layer on winter days.

Race Weather Protection

The Assos EQUIPE RS Alleycat S11 is designed to tackle wind, light rain, and sudden weather changes without compromising performance.

The areas most exposed to the elements — chest, shoulders, and upper back — are made with a 2-Layer windproof, waterproof, and highly breathable membrane, while the lower body uses an ultralight and elastic fabric that maintains freedom of movement even in the most aerodynamic positions.

The result is effective protection without creating the "bag" effect typical of traditional wind jackets.

Aerodynamics Developed in the WorldTour

The new S11 generation is born from continuous collaboration with professional athletes.

The orientation of the seams has been completely revised to improve airflow, reduce turbulence, and offer an even cleaner silhouette.

The AEPD 11 racingFit hugs the body with uniform 360° compression, keeping the garment perfectly stable even at the highest speeds.

Technical Materials

Diamond ULTRA

The main fabric Diamond ULTRA is a two-layer softshell designed to offer:

• wind protection;
• high breathability;
• water-repellent treatment;
• four-way stretch;
• maximum aerodynamic efficiency.

The body-mapped construction allows material to be placed only where truly necessary, reducing weight and improving comfort.

575CX Fabric

The lower parts of the sleeves are made of 575CX, an extremely elastic fabric that improves breathability and ensures a snug fit without restricting movement.

MIG Fabric

The woven MIG fabric band, positioned on the abdomen and lumbar area, offers:

• high water repellency;
• reduced water absorption;
• improved aerodynamics;
• reduced weight;
• minimal bulk.

Technical Details

The jacket integrates a series of solutions developed for high-performance cycling.

Double-Slide Zipper

The double-slider zipper allows the jacket to be opened from both the top and bottom, facilitating ventilation during intense efforts without compromising garment stability.

Eco-DWR

The Eco-DWR treatment guarantees water-repellent protection against light rain and road spray, using environmentally friendly technology.

Reflective Inserts

Reflective details increase cyclist visibility in the evening, under cloudy skies, or in low-light conditions.

Ideal for

The Assos EQUIPE RS Alleycat S11 is designed for:

• road races;
• high-intensity training;
• spring and autumn rides;
• mountain descents;
• long rides with variable weather;
• use as an outer layer during winter.

Technical Specifications

Why choose the Assos EQUIPE RS Alleycat S11

The Assos EQUIPE RS Alleycat S11 is one of the most advanced wind jackets available today for road cycling. Every detail has been designed to offer maximum performance without compromise: weather protection, WorldTour-developed aerodynamics, high breathability, and a second-skin fit that makes it almost imperceptible during riding.

It is the ideal choice for the cyclist who demands a lightweight, highly compressible technical garment capable of confidently tackling wind, light rain, and sudden temperature changes.