The THERMOSHELL PRO is an amazingly lightweight, breathable, insulated women's jacket with an adjustable hood. The jacket can be easily packed into its own pocket. The insulating material is PRIMALOFT, which is as soft and compressible as down, but easier to clean, faster drying and environmentally friendly. Thanks to the water-repellent treatment, the jacket stays warm even when it gets wet. The ideal option if you are looking for a jacket for active movement in cold weather and want to save weight.