Is the functional fly in men's underwear functional? - Quora

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Guys, how often do you use the pee hole on the front of your underwear as opposed to just pulling the waistband down? - Quora, pee in underwear

Is the functional fly in men's underwear functional? - Quora

What's the best men's underwear for active, sweaty people? - Quora

What are the best boxers to wear? - Quora

Is the functional fly in men's underwear functional? - Quora, brief fly

Does anyone use the slit in the front of men's underwear? - Quora