Well before i started packing agin I was around 215 and 5 feet 11 Not huge but miserable, Heaviest in my life. I started walking in prep for my smokies trip" First Backpacing trip in over 30 years" I walk 3 days a week about 2.5 miles very fast. I am at 185 now , and had no real problems on my Smokies trip. I only hiked about seven miles a day with begin pack rate at 36 pound water and all! I cant wait to go again I am motivated!