WATERPROOF: KEEN DRY waterproof breathable membrane keeps your feet dry and comfortable all day long by allowing vapor out without letting water in. EASY ON/OFF: Easy-slide bungee capture system provides a secure fit while offering a quick and easy way to get footwear on and off. Featuring an additional hook-and-loop strap in little kid and toddler sizes. FEEL-GOOD MATERIALS: Durable premium leather and breathable performance mesh deliver a fast pace. Featuring ethically sourced leather from LWG-certified tanneries. ZIPPY FEEL: The lighter, more athletic construction provides lightweight performance for active kids. Agile rubber tread keeps them on their feet and confident. TOE PROTECTION: High abrasion rubber tip for added durability and protection.