This podcast episode compares two popular series of BILLY Footwear for children: the Classic Series and the D|R Series. Both series feature the FlipTop zipper, but the Classic Series is designed for everyday wear with materials like canvas, suede, and leather, while the D|R Series is built for durability and strength with thick nylon fabric and reinforced features. The Classic Series offers basic cushioning and support, while the D|R Series has adjustable insoles, an enhanced outsole, and features that accommodate custom orthotics and Ankle-Foot Orthoses. The episode helps listeners understand the differences between the two series to determine which is best suited for their child's needs.