The Ripzone Kirk Insulated 3-in-1 Kids jacket is an excellent option for boys, as it features an inner insulator jacket that comes included. Layer up with the insulator on a colder days, or the shell can be used alone on mild/warmer days. With 80 grams insulation in the insulator jacket, and 80 grams insulation in the outer jacket, this is sure to keep them toasty. Outer jacket features critical seam sealing, and Grow Tech technology, allowing the sleeves to grow up to 2 inches, making this jacket a great option over several seasons. Attached snow skirt to keep them dry. 5K Waterproofing, and 3L breathability.