The biggest challenge is balancing insulation, water resistance, and the overall design—down to trims and pocket openings. For example, the Regular Fit Hooded Double Pocket Zippered Waterproof model focuses on acceptable insulation with a water-resistant zipper and double pockets. Meanwhile, the Girl Buttons Pocketed Puffer Jacket uses 100% nylon to keep it lightweight and flexible, with stylish sleeves and pocket details. Baby Boy Waterproof models are made for kids’ needs, using 100% polyester and button detailing. In short, choose the right combination of insulation, durability, and weight for the user’s activities.