GOGO Kid Reflective Running Vest/Safety Vests With Elastic Waistband, Preschool Uniforms-NeonGreen-CHILD Made of polyester and reflective PVC. Reflectivity vest enhances visibility and safety at night. Two-piece elastic waistband for comfortable size; easy to put on and take off. Essential safety equipment for your child's outdoors sports: running, cycling, walking, skating, skiing, skateboarding. Our size is not standard US Size. Please check product's SIZE INFO to make sure the item fits your measurements before purchase.