A day-to-day staple that shares the field-proven adaptable warmth of our Ambient collection. The Ambient 100 Shirt Jacket features 100 grams of PrimaLoft(R) Evolve insulation for breathable warmth that adapts to life on the move. Complete with a durable nylon stretch fabric and a DWR finish, this lightweight layer is capable of taking on erratic weather for years to come.