Concerning togas, Wikipedia says: "it was hard to put on, uncomfortable and challenging to wear correctly, and never truly popular. When circumstances allowed, those otherwise entitled or obliged to wear it opted for more comfortable, casual garments. It gradually fell out of use, firstly among citizens of the lower class, then those of the middle class. Eventually, it was worn only by the highest classes for ceremonial occasions, and by the 5th century AD, it had been replaced as official costume by the more practical pallium and paenula."

And "It was considered formal wear, and was generally reserved for citizens."

One story suggests that even patricians, no longer in office, did not wear togas all the time:

"Various anecdotes in Livy's history of Rome reflect the toga's symbolic value. In one, the patrician hero Lucius Quinctius Cincinnatus, retired from public life and clad (presumably) in tunic or loincloth, is ploughing his field when emissaries of the Senate arrive, and ask him to put on his toga. His wife fetches it and he puts it on. Then he is told that he has been appointed dictator. He promptly heads for Rome.[34] Donning the toga transforms Cincinnatus from rustic, sweaty ploughman – though a gentleman nevertheless, of impeccable stock and reputation – into Rome's leading politician, eager to serve his country; a top-quality Roman."

By comparison, the entry for "tunic" says: "The name derives from the Latin tunica, the basic garment worn by both men and women in Ancient Rome, which in turn was based on earlier Greek garments that covered people around their waist." The Greek garment was called a chiton.

You may also be interested in a sarong, or related clothing like a dhoti, lungi, mundu, or lava-lava. Some of the pictures from those pages shows men who are chubby around the middle.

Excellent alternatives to pants that I hope the fashion trends experiment with. Long shirts with dark sweats or "leggings" of some kind is something to try. If shirts are long enough, then what holds the sweats/leggings up doesn't matter as much, giving more choice. (Most men don't want to expose their hairy legs except on the hottest of days.)

> However, as one bulks up around the middle as they mature, pants have difficulty staying up and fitting right. Tightening one's belt to compensate is not comfortable. Suspenders may solve some of that

The trick is to pull the pants up high enough that the belly itself holds them up. I do this with my pajamas but I'm unfortunately not old enough to pull of this look in public. The stereo type of old man having there pants pulled up to their armpits has a practical origin.

Re: "The stereo type of old man having there pants pulled up to their armpits has a practical origin."

That's one of the signs pants have outlived their usefulness. When you are young your hips are wider than your middle, making it easy for pants to stay up. But when your middle gets larger than your waist, the physics of pants don't work, and you have to either resort to torturous belts, or pull them up so high that you have camel-toe.

One could always go with the classic poncho or the thing Homer wears on the Simpson's when he was 300lbs. Or you could go for the Hugh Hefner look and just rock a bath robe. Or there's what my 400lb buddy likes to do when he has company, just sit naked under a blanket in the living room.......

There's plenty of options, you just gotta be imaginative.

In https://en.wikipedia.org/wiki/King-Size_Homer Homer wears a muumuu.

But how doth one hide their junk?

Underwear (or undergarments) and togas are not mutually exclusive. Besides, we can consider "toga-like" rather than exact replicas.