Aquatic Dog Life Jacket Size Chart

  Back Length Chest Girth Neck Girth Recommended Weight
X-Small 7.9" 11.8" - 16.5" 9.8" - 13.8" 4.4lb - 8.8lb
Small 10.2" 16.1" - 20.9" 14.2" - 18.5" 8.8lb - 15.5lb
Medium 11.8" 16.1" - 24.8" 15.7" - 18.9" 15.5lb - 22lb
Large 13.4" 19.7" - 29.5" 16.5" - 21.3" 22lb - 44lb
X-Large 17.3" 27.6" - 38.6" 19.7" - 27.6" 44lb - 110lb