Posted this somewhere the other day but didn't remember the brand so here it is.
There are hundreds of these and this is one of the earlier ones that really goes the distance.
I fought with a leaking car tire for a couple hundred miles and an extra day in Ashland before replacing the tire on the way to Eroica.
Had to inflate it 20-30 times in the process, never faltered and is no worse for wear that I can tell, had it for 2 years now.
https://www.amazon.com/Xiaomi-Compre...34544306&psc=1
