We love that the new Spoling highchair from Ikea can be folded for easy storage. We have to admit, though, that we're not super excited about the pattern used for the seat, mostly because we can't see it fitting into a lot of decors. But we reckon that can be easily remedied if you're handy with a needle and thread.
Comprised of a machine-washable fabric seat on a tubular steel frame, the Spoling also features a little pouch behind the seat for storing bibs and whatnot.
$39.99 at Ikea

Ercol Bar Stool
I'll be curious to see reviews of this versus the Antilop. . .
I love this chair! It's so convenient to just fold it up and hide away. Best one I've found - east to clean, too.
Does it come with a tray?
I love the seat cover... I have always looked for black and white baby gear.. hard to find ya know.
Seat height is 21-5/8 inch. It's meant to seat an infant at table height, so no need for a tray. The highchairs with a tray tend to be an American thing -- I'm guessing this has to do with American homes tending to have lots of extra space, American families being drawn toward elaborate items that are specifically for the baby rather than just modifications to allow babies to do what we do, etc.
I'm heading to Ikea this Saturday to check this highchair out, but I'm concerned about the inability to adjust the height. Obviously, not all tables are built to the same height. Other than that, everything else looks just about perfect.