Replying to @Aly Straw We tested our harnesses on big deep chest dogs but still recommend you measure both the base of the neck and chest to see if our sizing will work! We’ve gotten some questions about releasing an XL harness so if this size wouldn’t fit your dog please let me know the measurements and I’ll write them down! #dogharnesses #bestdogharness #dogharnessrecommendation #nopulldogharness #nopullharness #bigdogharness #tiktokshopblackfriday