I know, partygirl43. I am looking for one too. U2 offered one as a promo when All That You Can't Leave Behind came out back in 2000. It was a limited edition box set that was numbered to 1000.
The difference with this beanie was that it came with the logo "U2000" stitched on it. I have one and use to wear it a lot but now am looking for a blank one to wear full time. The U2000 I wear looks dated. If anyone know what brand he wear please let us know. Thanks!