When the forecast calls for persistent cold temperatures and your hunt demands varying levels of activity, the Kiln 250 Long John is there for the long haul. Lofted 250gsm Midweight Merino-X provides sustained but balanced warmth all day, no matter if you're stationary or climbing mountains. The 17.5 micron merino wool remains soft and comfortable next to skin while ventilating, fighting back odor, and staying silent. If there is one piece you should have for mid and late-season hunts, it's the Kiln 250 Long Johns.