The 686 Boy's Incline 3-in-1 Insulated is constructed with infinidry-8, a water proof and breathable proprietary fabric. It has critically taped seams to keep out the moisture. It comes with a Fleece smarty liner jacket, that can be worn on its own. It comes with a full 40g of body insulation, and roomy chest cargo pockets. It also has an adjustable powder skirt, a great feature to have in the snow.