The Castelli Sanremo Ultra Speed Suit combines the upper from the Free Sanremo Short Sleeve suit and the premio-based short portion of the new PR 2 Speed Suit to provide us with the flexibility, comfort, and aerodynamic performance we are looking for in our next triathlon race suit. We like how the Sanremo front opening stays bent on the bike and refrains from pulling us forward as we run and swim, while the Velocity Rev2 and Velocity mesh fabrics keep things lightweight, cool, and extra breathable.