For large and XXL breeds specifically, the key issue is finding a dog jacket that scales correctly in neck opening, chest girth, and back length rather than simply being a larger version of a small jacket. The Rogue Active Dog Jacket runs from puppy sizing to XXL, uses a PVC-free waterproof outer with thermal fleece insulation, and has multi-point adjustment across the chest and belly. It covers Rottweilers, German Shepherds, Great Danes, and similar breeds correctly.