Product Description: Item Type:Pet Life Jacket Material:Polyester Target Audience:Dogs Dog Size:Small,Medium,Large Season:Spring,Summer Size:XXS / XS / S / M / L / XL / XXL Size Chart Size----------Back-------------------Neck------------------------Chest XXS------5.91"/15cm-------7.48"-10.63"/19-27cm-------11.02"-14.57"/28-37cm XS-------8.27"/21cm-------9.84"-13.78"/25-35cm-------11.81"-16.54"/30-42cm S--------10.24"/26cm-------14.17"-18.50"/36-47cm-------16.14"-20.87"/41-53cm M-------11.81"/30cm-------15.75"-18.90"/40-48cm-------16.14"-24.80"/41-63cm L--------13.78"/35cm-------16.54"-21.26"/42-54cm-------19.69"-29.53"/50-75cm XL-------17.72"/45cm-------19.69"-27.95"/50-71cm-------27.56"-37.40"/70-95cm XXL-----18.90"/48cm-------24.41"-35.43"/62-90cm-------34.65"-48.82"/88-124cm Features: 1. Highlightly reflective stripes make it easy to see where your baby is when he or she is playing in the water. 2. Nylon clasp around the whole body and neck of your dog to ensure security. 3. The high-quality mesh can let dogs breath easily and smoothly. 4. Durable D buckle, easy to install leash, suitable to walk the dog on the seaside. 5. Adopting the seatbelt-buckle, it is easy for you to wear for your dogs and prevent them from breaking away. Package Include: 1 x dog lifejacket Notes: 1. Please allow 1-3 cm difference due to manual measurement and 3-5 g for the difference between different colors. 2. Due to the screen difference, the color may be a little different from what you expect, please allow it.