LARGE FITS DOGS 61 LBS TO 100 LBS - Top of Shoulders/Base of Neck Measuring a Diameter 21.75" - 27.0"; Chest Measuring a Diameter 27.5" - 36.75" HI VIS FLUORESCENCE - Superior visibility in both urban and rural areas. The 300D Oxford weave neon yellow vest keeps your dog visible to you and others up to 500 feet away, maintaining your line of sight and helping to prevent automobile and hunting accidents on or off leash. NATURALISTIC FIT - We engineered the SafetyPUP XD Lite vest with the same great features and benefits of our original SafetyPUP XD vest with a sporty style. With coverage to the mid back, our Lite vest is ideal in warmer months or for dogs that prefer a sleeker, more naturalistic fit. UTILITY STRAP INCLUDED - For convenience, we've added a utility strap to the side of the vest. Hang a poop bag or carabineer to hold lightweight accessories.