Columbia Kids Boys Interchange Omni Tech Hooded 3-in-1 Winter Jacket Size XS 6/7. Stay warm and cozy in this Columbia Kids Boys Interchange Omni Tech Hooded 3-in-1 Winter Jacket. Made with 100% Polyester Outer Shell Material, this jacket is perfect for winter. This jacket comes in Black/Gray color and is suitable for kids in the XS size range (6/7). The jacket uses the Columbia Omni Tech fabric technology and is waterproof to keep you dry in wet conditions. The jacket is a 3-in-1 style, which means that it can be worn in different ways for different weather. It includes a hood to protect you from the cold wind. The jacket is perfect for outdoor activities during winter. This item is in a used condition. Please review photos carefully for more information.