From 686:

Everything thing you’ve grown to love and trust about GORE-TEX products, now integrated with 686’s Hydrastash built-in apparel hydration system. The Hydrastash Sync features a 2-layer Nylon GORE-TEX shell, the Hydrastash system, and a merino wool collar and mouth flap with active heating/cooling properties. Stay drier, ride stronger, go further this winter in the GORE-TEX Hydrastash Sync. Available in limited quantities.

Learn more about the GORE-TEX Hydrastash Sync Jacket here.