The shirt is rounded, and thus is not meant to be worn untucked. Shirts which are meant to be worn untucked (Which many of the affected dandies here wouldn't even admit existed) have squared off tails and fronts. I feel like squared off shirts look retarded untucked. Im gonna take off the blazer at some point too. Ive worn tapered shirts untucked a billion times. So do tons of other people I know. Squared off button ups untucked always create that tenting and make you look fat. All slim fit shirts I have are tapered.