This versatile boot is even cooler with VenTEK™ technology with built-in breathable mesh panels that boost airflow. Plus, it has an an innovative, removable footbed that makes longer wear possible as your child grows.Upper: - Premium full-grain leather upper- VentTEK™ mesh panels keep air circulating when your day heats up-Two-row stitch patternLower: - Removable Wiggle Room™ insole provides up to a half size of extra room- 4LR™ construction provides lightweight support and stability- Durable, flexible TPR sole