You'll fall in love with this preppy cotton staple. 

Two button collar

Machine wash in cold water on gentle cycle. Line dry

Note: If the dog has a stout build, select one size larger.

Sizing Information:

Back: Measure length of pet's back from the base of the neck to the base of the tail.

Neck: Measure the circumference of pet's neck for a snug fit. No need to add inches as you would with a collar.

Chest/Girth: Measure girth around the broadest part of the chest and add 2"

Sizes:

XS - (Neck: 21 cm / 8") (Back  Length: 23 cm/ 8.84") (Bust/Chest 28 cm/10.8")

S -  (Neck: 25 cm / 9.63") (Back  Length: 30 cm/ 11.6") (Bust/Chest 34 cm/13.17")

M -  (Neck: 27 cm / 10.41") (Back  Length: 33 cm/ 12.8") (Bust/Chest 38 cm/14.75")

L -  (Neck: 32 cm / 12.5") (Back  Length: 35 cm/ 13.7") (Bust/Chest 42 cm/16.32")