One size fits most: Fully adjustable to fit small, medium and large breed dogs from 10 - 120 lbs. (7 - 54 kg). Chest mount can be removed to accommodate smaller-sized dogs. Padded at all adjustment points to ensure your pet's comfort at all times.^Washable + water friendly: Holds up to swimming, splashing, mud and more. Can be machine or hand washed to keep it clean.^Easy to attach + remove cameras: quick release bases make attaching and removing the cameras quick and easy.