Banded Calefaction 3-N-1 Insulated Wader Jacket – Featuring a PrimaLoft Insulated Zip-out Liner That Can Be Worn Together, Or As A Standalone Garment. Calefaction, kal-e-fak'shun, adj. act of heating: state of being heated. It's everything you need in one do-everything, hunt-anywhere wader jacket, designed to keep you warm. Extreme weather swings call for versatility. Versatility calls for innovation, performance, and the finest materials known to man. Enter the Calefaction 3-n-1 Wader Jackets. SHELL: the 100% waterproof shell combines our exclusive SHEDS waterproof/breathable technology inside our durable GO3-LAYER fabric construction. Finished with fleece-lined upper hand-warmer pockets, zippered and magnetic chest pockets, lower bellows shell pockets, watertight YKK Zippers, and a tri-adjust hood. LINER: the zip-out liner features 100-grams of PrimaLoft, the worlds most advanced insulation. 3 jacket options to cover any scenario – one price. That's versatility.