This jacket requires no special setup; simply put it on. It is designed for children aged 7-8 years old (UK sizing). For care, the jacket's composition of 100% polyester for the body and lining, and a 90% down, 10% feather fill, dictates specific maintenance. It must be hand washed only. Avoid machine washing, bleaching, tumble drying, ironing, or dry cleaning to preserve the integrity of the down fill and outer fabric. After hand washing, gently press out excess water, then lay flat or hang to air dry, fluffing periodically to redistribute the down and restore loft.