Kask. Castelli. Two Italian, race-oriented entities with a passion for quality and craftsmanship. And finally, passions have combined in the most suitable of conditions -- a race jersey. The Castelli Kask Aero Race Short Sleeve Jersey displays the namesake of Kask, while highlighting the obsessive detail of Castelli.
As its name suggests, the Aero Race jersey is both aerodynamic and race-ready. The two characteristics go hand-in-hand for racing, so to combine them, Castelli constructed the majority of the jersey from its Velocity fabric. This material is renowned for its quick-drying properties and overall light weight -- around 131 grams for the entire jersey. Additionally, the fabric has a tightly knitted weave that increases laminar airflow over the body. In fact, Castelli makes the claim that this material is so effective, that you'll save an average of 10 watts at 40km/h. In theory, this not only translates to less exertion, but around 35-40 seconds saving over an hour.
For comfort, Castelli expanded upon Velocity's high breathability by adding its patented Prosecco treatment. This process is a topical, hydrophilic treatment that spreads moisture out over a larger surface area for rapid evaporation. Along these lines, the rear of the jersey has been constructed from a lightweight, breathable open-mesh. The theory behind this is simple. While the wind naturally confronts and evaporates moisture at the front of the jersey, the rear needs extra support in both ventilation and wicking. And in practice, nothing does this better than the open-mesh that's been selected, here.
For fit, Castelli has incorporated a minimally seamed pattern that eliminates abrasion while adding to the aerodynamic advantage of the jersey. The cut of the Aero Race also falls on a curve as to follow the contours of your body. However, the jersey has also been designed around the body in motion. This means that the fit is most precise throughout the movements of cycling. To keep the jersey in place, Castelli placed a comfortable, silicone gripper at the waist. And at the sleeves, the Aero Race features the custom Giro3, single-layer gripper elastic. This gripper system keeps the sleeves flush with the skin as to minimize the allocation of drag.
For storage, the Aero Race has three rear pockets. Castelli also included reflective elements throughout the jersey to increase your visibility to motorists in low-light conditions.
The Castelli Kask Aero Race Short Sleeve Jersey is available in the colors Black and White and in the sizes Medium, Large, and X-Large.