100% Polyamide Pertex® Quantum – What good is down insulation inside a jacket if the exterior fabric isn't doing anything in support? Pertex Quantum is like the insulation's maid of honor—it's there to make sure all the pieces fall into place. This tightly woven exterior fabric, constructed from fine yarns, has a light, soft feel that allows the insulation to fully loft. It traps still air to improve the warmth and efficiency of the insulating layer, and it's coated with a DWR to dispel wind, rain, and snow.

High Performance DWR (Durable Water Repellent) – We dare you to go stand in a shower or the next rainstorm with your favorite Flylow jacket on. See how the water molecules roll off the shell fabric? That's due to Flylow's high-performance DWR, a polymer coating added to fabric that makes it hydrophobic, meaning moisture beads up and rolls off, like marbles on glass.

133g Primaloft Gold Insulation

Zippered Hand Pockets

Zippered Chest Pocket

Two Internal Dump Pockets

2-Sided Hem Cinch

2-Way Center Front Zipper

Helmet Compatible Hood with 3-Way Adjustment

Internally Elasticated Cuffs

YKK® Zippers