Bull Terrier Dog Harness with Handle

How to measure a dog for this dog harness:

Small:

• around the neck of the dog (green color on the picture):
  10-20.5 inch (25-52 cm)
• around the chest behind the front legs (red color on the picture):
  25-35 inch (63-89 cm)

Medium:

• around the neck of the dog (green color on the picture):
  13-23 inch (33-58 cm)
• around the chest behind the front legs (red color on the picture):
  25-38 inch (63-95 cm)

Large:

• around the neck of the dog (green color on the picture):
  17-27 inch (43-68 cm)
• around the chest behind the front legs (red color on the picture):
  27-42 inch (68-105 cm)

Extra Large:

• around the neck of the dog (green color on the picture):
  24-33 inch (60-85 cm)
• around the chest behind the front legs (red color on the picture):
  32-50 inch (79-125 cm)