No Pull Dog Harness Sizing

Size	Chest	Weight
S	12 - 14" (23 - 28 cm)	7 - 22 lbs (3 - 10 kg)
M	19 - 24" (48 - 60 cm)	22 - 44 lbs (10 - 20 kg)
L	23 - 28" (58 - 72 cm)	44 - 66 lbs (20 - 30 kg)
XL	24 - 32" (60 - 82 cm)	66 - 99 lbs (30 - 45 kg)