I've gone through many undershirts over the years and they always suffer the same fate - shrinking.  There's nothing worse (well, maybe cancer) than an undershirt that shrinks to the point where you can't tuck it in anymore.  These shirts are extra long, and although they do shrink, they shrink just the right amount so that there is plenty of material left to tuck in.  They are soft, and tagless, and just the right thickness for me.  A will definitely order more.