This ultimate, eco-friendly dog collar is naturally dyed pure hemp - one of nature's strongest fabrics. It’s now made with a nylon-reinforced plastic quick-release buckle for extra durability. You’ll find this collar will stand up to the more rigorous salt-water swims, mud puddle baths, snowy romps and the occasional roll in the sand. The “cozy” version has a fleece lining to ensure optimal comfort for your best-friend. It's what you would wear if you were a dog. This adjustable Medium collar runs 12-19". Machine washable.