Uniqlo will tailor them for free for a regular (i.e. visible) stitch, but will do a blind stitch for $5. I opted for the blind stitch and asked the clerk to make sure that the inside allowance on the hem was at least 3" wide (or as tall as it was in the unhemmed pants) because the Uniqlo x Lemaire lookbook description indicated that it was designed so to facilitate rolling the hem up if you wanted. I don't think of the Lemiare look as one that includes rolled hems, but if I thought of it just as a slim luxe sweatpant I wanted that option.
Uniqlo was able to do it for me that way in a two hour turnover, but make sure to ask if you want that done as their standard allowance is probably much less, as the clerk had to make sure that they could accommodate the request, despite it being how the pants were designed.
Maybe that's why the hems are so long, as they were meant to be doubled up once hemmed? Although regardless, they did go a bit too long...
Edited by baklanyc - 10/14/15 at 1:48pm