UF Pro Delta OL 4.0 Tactical Winter Jacket Extremely reliable thermal insulation for below-zero operations. YOUR ANSWER TO FREEZING-STIFF COLD. You’re operating in freezing weather, but your task doesn’t necessarily involve intense physical effort. With the Delta OL 4.0 Tactical Winter Jacket you’ll not only defy the numbing cold but also stay fully protected from conditions that alternate between freezing and thawing, wet and snow. THERMAL INSULATION THAT ACTUALLY WORKS. The Delta OL 4.0 Tactical Winter Jacket is insulated with G-LOFT®, a hollow polyester fiber filling that lines the torso and sleeves. Those fibers capture warm air from your body, meaning the jacket needs less bulk to provide superior inner warmth. You can depend on G-LOFT® to keep you warm and dry even in the worst wet-weather because it doesn’t absorb moisture. And owing to its high compressibility, the jacket springs right back to its ready-to-start-working shape the moment you pull it out of your backpack. Truly the best balance of volume, weight, and reliability. UF Pro Delta OL 4.0 Tactical Winter Jacket