Typically, this packable vest category has been dominated by lightweight ripstop fabric pieces that provide good wind and spray resistance, but a whole lot of flapping and noise. Our goal was to give you everthing you need, without sounding like a flag in a breeze. We engineered a strecth fabric that conforms to your body, providing a soundless ride, while providing wind resistance. To resist spray, we treat the front panel fabric with a durable water repellant coating, while leaving the back panel fabric untreated to increase breathability. The vest packs down into a fist size ball.