Pet life jacket[Size]: S M L [color]: pink mermaid gray shark Red clownfish Pet life jacket fabric: 600D polyester oxford cloth, filler: high density polyethylene foam. Made of professional diving clothing, it is easy to identify at night and during the day. The diving material has a high density and elasticity, which not only plays a good role in fixing, but also has a certain warmth function, which is close to the dog's most vulnerable waist and abdomen.