Western Chief Kids' Light-up Rain Boot Rubber Synthetic sole Shaft measures approximately 6.5" from arch Heel measures approximately 1" WATERPROOF PVC RAIN BOOT | Our Lighted Boots are made with Polyvinyl Chloride, aka PVC. Polyvinyl Chloride is a plastic material that is strong, waterproof, and flexible. The qualities make this boot perfect for standing up to adventurous play! STRONG CONSTRUCTION MEET PRINT PATTERNS | The handmade vulcanization process reduces weak spots in our rubber. Water isn't getting through! It also allows us to have more freedom to design the family-friendly, fun prints you and your child love. COMFY INSOLE AND LINING | Children are rough on boots and need a comfortable insole to run around on. Our boots are made with a cozy EVA insole. Our insoles are removable, making them easy to replace and clean. Our boots are lined with polyester. SLIP-RESISTANT |Our boots are made with a slip-resistant treaded lug outsole to provide traction on slippery surfaces! No more slipping and falling! The outsole is also self-cleaning, meaning you wont have to wash mud and other grub off the boots. SAFETY FEATURE |These rain boots light up with each step. The battery lasts for 30,000 steps. The lights add an additional safety feature so you can see your child easily in the dark. They are fun and your child will stay merry with each step! EASY ON AND OFF | We know shoelaces and zippers can be a battle with kids. To make your day easy, we make our rain boots with two pull handles for easy on and off! This promotes independent dressing and is perfect for the family on the go! FUN PRINT | Western Chief is known for making family-friendly prints. Our boots have darker tones that contrast well with the light. Blend in with camo, swim with gators, or choose from a variety of other cool prints that your child will love! MEASUREMENTS AND FIT | Our boots run big. The shaft of our Lighted Rain Boots measures an estimated 6.5 inch from the arch.