maybe there are some things that need tweaked here and there, i'm not sure as i didn't go through it with a fine-toothed comb or anything, but my impression is that this is a site to be very proud of. to me, it has what every site should have (at least on the surface) and generally the way it should be done. i would recommend to people that have a brand compatible with this style of site to use yours as an example ~ which isn't to say copy it, but it's just a great example, imo.
one thing i really like seeing are *good* pics of people wearing the product that doesn't feel like just a swarmy corporate gimmick of perfect people in a contrived setting. on the flip side of that, i really don't care for the kids standing against a wall thing, either ~ boring and overdone! either way, the trick is nice photography, imo, and sooo many brands fail to do that.
i don't know if there are any major issues with it when it comes to the 'smaller' stuff like return policies and such, i'm just looking at the look, what obvious content you have and how it's presented, and the ease of navigation. so, in that sense, i think you've got a winner and, if you don't mind, will likely refer others to your site when appropriate when they need some inspiration for 'how should my site look?' type of stuff. i think i can trace back some of your major inspirations for the design of the site, but i'm not a shill for those guys, lol.
have you given any thought to having womens clothing, too? the one thing i noticed was how the accessories were in the same page as the shirts, so i might consider adding an accessories category so that kind of stuff won't go unnoticed as easily, if that makes any sense. still, that's probably pretty trivial....