"What Our Gearhead® Experts Are Saying:""Whether I’m heading out on a crisp morning ride or need a lightweight layer for variable temperatures, the Fly Direct Vest never leaves my pack. Its Polartec® Alpha® Direct insulation is impressively warm for how light it feels, and I love how it folds down to almost nothing when not in use.""We’re always prepared for changing conditions, and the Fly Direct Vest from Castelli is our secret weapon for chilly starts or quick temperature drops. Built with Polartec® Alpha® Direct insulation, this vest delivers the perfect balance of warmth and breathability, letting us ride comfortably from early dawn through to dusk. Its ultralight windproof shell keeps the chill at bay, while the packable design means it’s always easy to bring along—whether tucked in a jersey pocket or stowed in a frame bag. From the YKK® Vislon® zipper’s convenient dual opening to the three handy back pockets for essentials, it’s built for the long haul. And when light fades, the reflective waist detail helps us stay seen. Lightweight, protective, and easy to carry, this is the layer we trust for every ride."