Ive used an avery for many years. Take your dog into the store and fit him. Dont be afraid to trim neck and leg holes. If you ever hunt out of a boat you'll appreciate the handles.
Also, condition your dog ro it before the season and know when to put it on and take it off. Most owners will put it on too soon in the season, overheat the dog.
"There are no words that can tell the hidden spirit of the wilderness, that can reveal its mystery, its melancholy, and its charm." ~TR
"He was a mighty hunter before the Lord." ~Genesis 10:9