The GT Shell Jacket S11 is a true all-season essential, built to meet the demands of year-round cycling with a perfect balance of stormproof protection, breathability, and layering versatility. Updated with the latest generation windproof and water-repellent textiles, this jacket is engineered to perform across a wide range of temperatures and weather conditions—making it a staple in any serious cyclist’s wardrobe.

At its core, the GT Shell Jacket S11 features Hurricane, a new high-performance textile that blends windproof defense with breathable weather protection. Coated with an ECO DWR treatment, Hurricane effectively shields against rain, road spray, and harsh winds while allowing internal moisture to escape. This prevents the stifling, humid microclimate that can develop in warmer conditions and keeps the rider dry and comfortable in cooler months as well. The jacket’s interior remains dry even during high-output efforts, ensuring comfort during both summer descents and winter training sessions.

In summer, the jacket compresses down to a compact size that fits easily in a jersey pocket—ideal for sudden storms or extended descents. During transitional seasons like spring and fall, it layers effortlessly over midweight jerseys to enhance warmth and shield from wind and rain. In winter, it serves as a final layer over a thermal jacket, creating a formidable barrier against cold, wet conditions.

Practical details enhance the jacket’s performance and comfort. An extended collar and dropped hem provide added coverage against cold air and road spray, while inserts of Sens-WR textile at the wrists deliver a seamless, gap-free fit with gloves. These water-repellent inserts not only block spray but also prevent bunching and friction between layers. Ultra-elastic materials used throughout the jacket ensure a snug yet flexible fit that conforms to the body for aerodynamic performance and total mobility.

The GT Shell Jacket S11 is constructed with ASSOS’ regularFit cut, optimized for long-distance comfort and layering. Highly elastic textiles eliminate excess fabric and flapping, maintaining a streamlined silhouette without restricting movement. Whether you're climbing in the rain, descending in chilly winds, or layering up for deep winter miles, the GT Shell Jacket S11 is built to adapt and perform through it all.