This down jacket with 95 separate pieces uses an innovative 18-degree curved sleeve design to fit kids' body shape and movement, ensuring they move freely and comfortably during outdoor activities. The outer layer enjoys excellent water resistance (Level 4) and moisture permeability of 8000g/(m2·24h). The zipper under the outer sleeve of this down jacket and the knitted fabric under the inner sleeve combine to create a breathable system to facilitate the skin to breathe when unzipped. This detachable two-piece set meets kids' multi-scene wearing needs in daily life or outdoor activities.