The XKG Transition Thermolite Jacket is a versatile mid to outer layer insulated piece when you need a little more warmth. A packable piece that stuffs into its own zip pocket. Made of 100% micro ripstop polyester with 100 grams of Thermolite synthetic loft insulation in the body and 80 grams in the sleeves to reduce bulk. Quilt stitched ripstop polyester secures the down in place. Water resistant treatment blocks moisture, and it has ability to pack away in its left hand side pocket for compact storage in your pack. The layering concept of the XKG Transition Jacket can be added to any system without taking up a lot of space or weight. A perfect compliment to the XKG Series to wear with the Covert, Lone Peak Jacket and/or the Windstorm Rain Jacket. A key piece when needing extra warmth during long glassing sessions or on colder hunts.