Please measure length,neck,and chest of your pet, It is better to choose the size based on the chest of your pet,The measurement chart is as following:

XS(x-small) Chest:9.8"-11.8" Neck:7.1" Back Length: 7.9"

S(small) Chest:11.8"-13.8" Neck:8.7" Back Length: 9.8"

M(medium) Chest:13.8"-15.7" Neck:10.2" Back Length: 11.8"

L(large) Chest:15.7"-17.7" Neck:11.8" Back Length: 13.8"

XL(x-large) Chest:17.7"-19.7" Neck:13.4" Back Length: 15.7"

• Size: XS(x-small) Chest:9.8"-11.8" Neck:7.1" Back Length: 7.9"
• Need to measure your dog's chest, neck and back length ( It is better to choose the size based on the chest of your pet )
• Knitted materials, The fabric is very soft and comfortable
• Have a slight elasticity
• We recommend normal hand wash, Unfavorable chlorine bleaching and soak for a long time