Deluxe Car Safety Harness Sizing Chart

A: Chest B: Neck Weight
Small 9-21 in 9-18 in 6-25 lbs
Medium 12-24 in 12-24 in 20-55 lbs
Large 15-33 in 15-27 in 45-85 lbs
X-Large  18-40 in 18-32 in 60-120 lbs

 

Deluxe Car Safety Harness_size guide