Staying hydrated is just as important as staying warm, and the 686 Boys Hydrastash Insulated Jacket provides both in a stylish package the kiddos will love. Body-mapped insulation provides warmth without excess bulk and the infiDRY® membrane will keep them dry on the inside and outside. The HYDRASTASH® system lets them carry water for the day in a seamlessly integrated bladder in the powder skirt, so you'll never have to argue with them about carrying a backpack again.