Originally Posted by Howard Long

FWIW, I have been known to take my own stemware onboard many times, frankly it's sacrilege to be drinking some of the premium wines offered in many first and a few business class cabins in thimble sized glasses. It's also not uncommon for well-meaning crew to fill those glasses very full, leaving no room for swishing and nose.

A few have been daring and gone stemless with Riedel O series, they're far better than thimbles on stems, and they're what I take on board to limit space and breakage.