Wetlands have created these beautiful boots in a lovely purple. They are completely waterproof and are knee-high. So, as long as you don't step in a puddle up to your waist, you'll be fine. With a durable rubber sole with a good slip-resistant grip to help prevent you from falling over. The strap to the side is a buckle fastening and is to adjust the width of the calf to allow for an extra-wide fit.