Why dogs need a life jacket? Not all dogs are good at swimming and even a good swimmer will get tired. An accident happened, natural waters are more dangers than swimming pools. Dogs in life jackets are more likely to adapt in natural environments. A life jacket can keep your pet warm while in water and safely enjoy the water time with you. A dog life jacket allows better control while dogs themselves are in water. Tips: If your dog does not cooperate with you on wearing the life jacket, be sure to provide your furry friend with some fun distractions. Let your dog run around a bit in the life jacket. Make sure it is not too loose or not too tight. Arms, legs, neck and tail all need to have full range of motion. High quality waterproof Material. Perfect Safety Design. Excellent floatage solution. Easy to put on and take off. Ladybug Pet Lifesaver Dog Life Jacket for Small/Medium/Large Dogs Products Features: A stylish high-performance dog floating device, used for dog water sports, to ensure that your dog can safely enjoy the water time with you. Innovative ladybug pattern design is fashionable and cute, making your dog stand out among the furry friends. Easy to find in time with bright color and fluorescent strips in the event of an emergency. Firm handle allows you to control the dog when necessary. Featuring an advanced mesh on the abdomen can help drainage and dryness to a certain extent. Read more Size guide: In order to get the best size, please measure the dog's girth first then choose the appropriate life jacket size. Be sure to consider the unique characteristics of the dog's large shoulders, long torso and so on when choosing . Size information: XS: Chest Girth: 13.0"-17.3"/ 33-44cm, Neck: 8.7"-11.4"/ 22-29cm, Back: 9.8"/ 25cm, Appr Weight: 5.5-11lbs/ 2.5-5kg. S: Chest Girth: 16.9"-21.3"/ 43-54cm, Neck: 10.6"-13.8"/ 27-35cm, Back: 11.8"/ 30cm, Appr Weight: 11-22lbs/ 5-10kg. M: Chest Girth: 20.5"-25.2"/ 52-64cm, Neck: 13.8"-18.1"/ 35-46cm, Back: 13.8"/ 35cm, Appr Weight: 22-39lbs/ 10-17.8kg. L: Chest Girth: 22.8"-29.5"/58-75cm, Neck: 18.1"-21.7"/ 46-55cm, Back: 15.7"/ 40cm, Appr Weight: 33-52lbs/ 15-23.6kg. XL: Chest Girth: 26.4"-33.1"/ 67-84cm, Neck: 21.3"-25.6"/ 54-65cm, Back: 17.7"/ 45cm, Appr Weight: 44-85lbs/ 20-38.9kg. XXL: Chest Girth: 30.7"-37.8"/78-96cm, Neck: 25.6"-30.7"/65-78cm, Back: 19.7"/50cm, Appr Weight: 65-120lbs/ 29.5-54.13kg.