That is, you can't if you're me, because the store it's from, the UK High Street chain Topshop, is so completely sensory-overload, all the time, that even if you do dare wander in, you wander out again shortly, dazed, bleeding from your ears, and uncertain of basic information that you went in with, like your date of birth and what the hell you were looking for in the first place.
So you think, oh, okay, it's 2005, now they must have a web site! And of course they do, and it's a flashtastic eyefuck of A Clockwork Orange proportions, and it's all you can do to grab this screencapture and get out of there with your on-good-terms relationship to your retinas intact.
So. Click on the image, if you dare, to try to purchase this £35 dress. I didn't even get as far as checking their international shipping rates. If you get in and get out without turning into a drooling mess, please report back. You'll get a hero's welcome.