3 Jackets-In-One.
.The Inner Jacket Is Packed With 100G Of Synthetic Insulation And Includes A Thermal-Reflective Liner To Help Regulate Body Heat. Columbia Boys' Whirlibird II Interchange Jacket - XS - BluePrints Featuring Our Outgrown System To Get Him Through Those Pesky Growth Spurts. He Can Wear The Waterproof-Breathable Shell And Inner Insulated Jacket Separately Or Together For Maximum Warmth And Protection With Our Exclusive Interchange System.