Quatro is known to be a best-seller and one of the most comfortable boots in the Grisport range. This stylish walking boot is modern and smart-looking, it is a well-loved walking boot that appeals to a wide audience. Designed with a unique vibram sole and support system, this boot is also fully waterproof and breathable however still lightweight and sturdy. It also features a padded toe-joint which makes the flex point of the boot amazingly comfortable.