Fox Racing may have made its name with moto-specific and moto-inspired gear, but the Switchback Women's Jersey is so XC-dedicated that it transitions easily from 2. 3in tires to 25mm. The main difference between the latest version and its predecessors is at the back pockets, which Fox updates with a fourth, zippered security pocket for keys, cash, and whatever else you can't afford to orphan on singletrack. Despite that one big chances, the Switchback is still a lightweight, low-profile jersey whose fit comes courtesy of M. I. T. I., the Italian manufacturer whose materials are at the heart of countless road cycling jerseys. In the Switchback's case, Fox opts for TruDri, a synthetic that privileges stretch, moisture management, and cooling airflow in equal parts, so it works to keep you cool and dry during long days spent pedaling across hardpack instead of riding the lift. When transitioning to the road, the Switchback blends in just as well. It's not quite a skinsuit fit, but the high-stretch material lets Fox cut the jersey with what is by far its most aggressive silhouette.