What Our Gearhead(R) Experts Are Saying:"I wore this on a fast group ride where the temp sat right in that cool, drizzly range, and it never once felt bulky against my body. The close fit disappeared once I got into a tuck, and the taped shoulder seams kept the light rain off without adding any extra weight."Some rides call for speed above everything else, and Castelli built the Perfetto Pro Jacket for the rider who refuses to trade one for the other. We love how the stripped-back, close-to-the-body cut disappears the moment you drop into a tuck, so the only thing you're thinking about is holding the wheel in front of you. Underneath that slim shape sits real defense against the elements. The 150g Polartec AirCore fabric breathes as the effort climbs, taped shoulder seams turn away light rain without any added bulk, and a floating pocket with splash tail construction keeps gear secure and spray off your back through every hard effort.