These trainers require no complicated setup; simply ensure the correct size for your child's foot. The specific variant is a UK Size 12, tailored for children in the `kids` age group and `Female` gender. Always check the shoe fits comfortably with a thumb's width space at the toe. The touch tape fastening allows for easy adjustment, ensuring a secure yet comfortable fit. To care for your Slazenger Alie 2.0 Trainers and maintain their appearance and functionality, gently wipe them clean with a damp cloth and mild soap. Avoid harsh chemicals or abrasive materials that could damage the outer material or the light-up mechanism. Do not machine wash or tumble dry. Allow them to air dry away from direct heat. While the trainers are designed for everyday wear, excessive exposure to water or mud may affect the light-up feature, so try to keep them as dry as possible.