Ready to tackle lengthy climbs and attack sprints, the Castelli Women's Promessa Sleeveless Jersey keeps you cool and comfortable on blistering hot rides. Its sleeveless design and mesh panels channel cool(er) outside air over your underarms for rapid sweat evaporation. Stratus Plus dual-layer fabric wicks moisture off your body, promoting evaporative cooling when the rising summer sun threatens to derail your midday ride. Other features include a heat-transfer Castelli logo that pops nicely against the jersey's brightly colored body, as well as three back pockets for handy storage and retrieval of your essentials.