The Castelli Gabba R jacket marks a significant evolution in cycling apparel, shifting from a versatile all-rounder to a highly specialized garment for competitive racing. Its predecessor, the original Castelli Gabba, gained widespread acclaim within the professional cycling community for its effective balance of warmth, weather resistance, and a race-oriented fit, particularly evident during challenging events like the 2013 Milan San Remo. This new 'R' iteration, signifying 'Race,' is engineered to be an uncompromising waterproof jacket optimized for high-speed performance, a departure from a general-purpose design.
Key to the Gabba R's design is its advanced construction, developed in collaboration with the Soudal Quickstep team. The jacket utilizes an exclusive fabric from ITTTAI, featuring a microporous polyurethane hydro-spun external membrane. This material boasts exceptional stretch capabilities (up to 100% in both directions) and a strategic balance between waterproofing and breathability. Unlike traditional waterproofs that prioritize high water column ratings, the Gabba R opts for a 5000mm rating, acknowledging that rain pressure on cyclists is relatively low (around 800-2000mm) and excessive waterproofing can hinder breathability. This design choice aims to prevent the uncomfortable 'boil-in-the-bag' effect, crucial for maintaining comfort during intense efforts. Practical elements include three rear cargo pockets for essentials, a dropped hem for splash protection, reflective details, and a two-way zipper for adjustable ventilation, all contributing to its functionality without compromising its packability.
In terms of ride experience, the Gabba R excels in its intended environment: fast-paced cycling in wet conditions. Its snug, aerodynamic fit eliminates the flapping common with less tailored waterproofs, which can be a significant advantage in races or quick group rides. While Castelli claims it's faster than some older aero jerseys, its primary benefit lies in its ability to offer superior protection from rain and wind chill without the drag and discomfort associated with bulkier, less breathable alternatives. The jacket's balance of water resistance and breathability makes it ideal for high-intensity sessions in cool, wet weather, where generating significant body heat often makes conventional waterproofs unbearable. Although it lacks insulating properties, which might deter some for casual training rides, its specialized focus on race performance, combined with features like packability and accessible pockets, makes it an outstanding choice for dedicated cyclists who prioritize speed and weather protection.
The Castelli Gabba R embodies a focused approach to cycling gear, delivering exceptional performance within its specific niche. By prioritizing aerodynamics, waterproofing, and breathability over insulation and broad versatility, it caters to cyclists who demand peak performance in adverse conditions. Its innovative fabric and thoughtful design elements set a new standard for race-specific waterproofs, proving that specialized gear can truly elevate the riding experience.