Jack Russell Terriers are spunky and clever pups always up to something mischievous. These smaller pups weigh anywhere from 11 to 18 lbs.

We recommend purchasing a size small for your terrier but if they are on the larger end we suggest they size up to a medium depending on their weight and chest measurements. Here are our best styles for your Jack Russell Terrier: sweaters, pajamas, hoodies.

Jonesy, pictured here, is wearing a S.