Here's what it is alexxx.
Bast, take a look at pictures of other who also have very low bf/not holding water, and you'll notice that Chris' just seem to stand out more. Wether that be from more developement, genetics, etc., i dont know. However, i figure if i could train mine and make them thicker, they would stand out more.
Dexter and Darrem seem to be in very good condition, yet Chris's just stand out more.