Tucking your shirt in - C/D?

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it's pretty challenging to successfully tuck your shirt into pants that have a low rise -- long shirts bunch uncomfortably and short shirts come untucked as soon as you move. pretty sure you should be wearing your pants high up on your hips or at your natural waist for a secure tuck

That's kinda why I said it works better with casual shirts -- low rises tend to mean either a halfway "Alabama tuck" or a kind of rodeo-dude / Matt McConnaughey type of thing (note: I know actual rodeo guys tuck in medium-high and all but you probably know what I mean here)