spyder sport utility harness

small size neck 10-14 in chest 16-19 for 10-20 lbs dogs 

medium size neck 14-20 chest 19-21 for 20-30 lbs dogs 

large size neck 18-26 in chest 22-25 in for 30-40 lbs dogs 

large size neck girth 18-26chest girth 22-25 for 30-40 lbs dogs