I am 5'11 with shoes on... 5' 10'' barefoot (let's go with my shoes on). My arms are a tad over 19 inches with no pump and I think the biggest measurement with a pump was right at 20.Wow just saw this. That's really good man, I was blasting 1000 mg to keep arms like that and get my abs out back in the day. It's amazing what this stuff can do and we don't have to take any serious risk.
How tall are you? I'm 6'2 and struggle to keep my arms "thick" like average height guys. I used to workout next to Brandon Curry before he won the Olympia and Flex Lewis (Flex was my neighbor in 11'-12') we all lived in TN where Brandon went to college. Seems like those shorter limbs look so much better than taller guys arms, I can't explain it. Your bicep straight on reminds me of flex.