The Castelli Gabba R Jacket sets a new benchmark in foul weather race gear, delivering unmatched protection, aerodynamics, and comfort in a long sleeve design. Developed in collaboration with fabric innovator ITTTAI®, it features a proprietary stretch fabric with a microporous electro-spun hydrophilic polyurethane membrane. This outer membrane eliminates the need for an external textile layer, preventing water absorption and maintaining breathability. The fabric is exceptionally lightweight at just 125 g/m² and offers two-way stretch for a close, race-optimized fit that doesn’t restrict movement. The inner fabric—78% polyester and 22% elastane—enhances comfort and ventilation, while the membrane’s advanced hydrophobic formula ensures maximum water resistance.

Engineered for the demands of pro racing, the Gabba R is Castelli’s fastest jacket to date, confirmed through wind tunnel testing. It includes a stretch wrist closure to seal out water, a YKK® Vislon® waterproof zipper, and three rear mesh pockets that drain quickly in wet conditions. A drop tail provides added coverage from road spray and features a reflective stripe for increased visibility in low light. Fully PFAS-free and weighing just 194 g, the Gabba R is ideal for cool, wet conditions ranging from 4°C to 18°C (39°F to 64°F), offering elite-level performance without compromise.