This jacket requires no complicated setup; simply wear it over your child's regular clothing as needed. It is designed for kids in the 9-10 UK size range, fitting comfortably for a typical child in that age group. It is compatible with various layering systems depending on the temperature; for colder conditions, layer a fleece or sweater underneath. For care, this jacket is made from recycled peached polyester fabric with a DWR finish and taped seams. To maintain its waterproof and breathable properties, it is generally recommended to: Info needed: Specific washing and drying instructions to maintain waterproof properties and fabric integrity. Typically, machine wash cool with a technical wash, avoid fabric softeners, and tumble dry on low or air dry, possibly re-activating the DWR finish with a low iron setting if recommended.