I did extensive research on the internet looking for rash guards that were big enough to leave some room for a big guy who can't stand tight clothing. SwimOutlet.com presented enough technical specs on an O'Neill Guys 24/7 Surf Tee, so I knew what I was buying. As a white guy with probably 7 of the 10 signs of skin cancer, I am looking forward to wearing this shirt on beach days on Oahu. Thank you for being there.