Size Chart
Neck
Chest
Length
Weight
XXS
7"
8.5"
5"
1-2lbs
XS
8.5"
10.5"
6"
3-5lbs
S
10"
12.5"
7"
6-8lbs
M
12"
15"
8.5"
9-12lbs
L
13.5"
17.5"
9.5"
13-16lbs
XL
15.5"
18.5"
10.5"
17-22lbs
XXL
17.5"
21.5"
12"
23-45lbs