The Chest Plate harness gives the best possible support for walking, sporting and travelling dogs. It's padded EVA chest support forms to the dog for a comfortable custom fit. It is easy to fit and provides the best control for a hard pulling dog. The reflective stitching and rust proof D-ring provides safety and security for daily walks. Features: EVA Chest Plate forms to your dog for a custom fit Ergonomic shape to fit any dog Easy to fit and adjust Reflective Stitching for night time safety Rust-proof welded D-Ring keeps your dog attached to the leash Size Guide:Extra Small Neck: 27 - 46cm Girth: 29 - 48cm - Small Neck: 34 - 56cm Girth: 37 - 60cm - Medium Neck: 41 - 68cm Girth: 45 - 73cm - Large Neck: 46 - 78cm Girth: 49 - 84cm - Extra Large Neck: 52 - 90cm Girth: 56 - 97cm