We live on the water and have a small fishing boat that we use during the season. We also recently adopted an 8.5 year old retired seeing eye dog who, according to his prior trainer, loves the water. We bought this jacket as we love the harness we got from Ruffwear. The jacket fits well and looks great on him. We also bought the undercoat with it. Initially we thought the undercoat was too small, but after learning how to put it on, we realized it fit him perfectly. Now we need the weather to get warmer so we can get out on the boat with him!