Castelli's first go at the Premio Cap was a success, but the design team felt it could be improved to align even better with the Premio series. The cap fits better and the fabric thinner to fit under a helmet, with substantially improved wicking capability. By applying the stretch-woven polyester fabric deployed in the Premio jersey, the traditional cur, paneled cycling cap also has better stretch and the same UPF50+ sun protection as the jersey. The brim is just long enough for proper coverage, yet won't impede your vision. This a cap that truly represents the Premio ethos, and is comfortable for long hours on the bike, with the performance capabilities to match.