Harkila Driven Hunt HWS Insulated JacketHarkila Driven Hunt HWS Waterproof Insulated Jacket The Harkila Driven Hunt HWS insulated jacket is thick and warm and has been designed to be worn when hunting out on the field. The jacket is equipped with Harkila's weather system, which is a lightweight, breathable, waterproof membrane that provides superior comfort and enhanced protection. A mixture of wool and polyester are used to create the thermo poly shield fill padding inside the membrane. In