If waterproof protection, insulation, and versatility in during variable weather is what you are looking for then the Men's 3 in 1 Snowshot Jacket from Patagonia is for you. One the outside of this Patagonia jacket is a completely seam-sealed, waterproof/breathable shell and on the inside is a 60 gram Thermogreen insulated liner jacket that comes out and can be worn on its own. Other details on the Men's 3 in 1 Snowshot Jacket include pit-zip ventilation, an adjustable hood, zip hand pockets, a chest zip pocket, and a hem cinch-cord to adjust the fit. When the weather can't make up its mind a jacket like this will be the perfect choice of outerwear.