EcoComfort Collar - Size guide

XS : Neck: 22 - 30 cm (8 - 11 inches), Width of band: 1.5 cm (0.5 inches)

S : Neck: 28 - 40 cm (11 - 15 inches), Width of band: 1.5 cm (0.5 inches)

M : Neck: 37 - 52 cm (14 - 20 inches), Width of band: 2 cm (0.7 inches)

L : Neck: 41 - 64 cm (16 - 25 inches), Width of band: 2.5 cm (0.9 inches)