Stay light and fast in changable conditions incredibly light and incredibly packable the one 1985 gore tex shakedry jacket is totally waterproof but highly breathable so youll remain completely dry and comfortable even in the worst of conditions shakedrytrade technology means water doesnt penetrate the fabric a few shakes and surface water is removed partial stretch cuffs seal the jacket at the arms while a comfortable soft face collar seals at the neck the full double zip benefit