Gooby is mainly focused on small breeds therefore our sizing scale will be different from other brands that focus on a broader scope of dogs.
At the moment, the largest harness we carry is the Lite Gear Z which tops at 28.75" around the chest while the largest apparel we carry is the Stretch fleece which tops at 34.5". Please see: How do I measure my dog?
While we may not currently have the size you're looking for, we are always looking to produce and create the next product for all of our customers' dogs. Please fill out a survey to help us build and design a better product for your dog.