I can't help you identify the model, but I do like that underwear site.
I used to visit men's underwear sites with the idea of purchasing something truly comfortable, supportive, and flattering...something I wouldn't mind being seen in. However, I would always end up distracted by the pics of the models. There was one site with customer reviews, and one of the reviewers mentioned lpsg.org. That's how I ended up at this forum. I've been here over a year and I never did make it back to that underwear site.
Anyway, MensUnderwearStore.com used to be one of my favorite sites to visit, mainly because the the quality of the photography. There was one model in particular who I really liked, not because he was well hung (because I don't think he was), but because he was just so darn cute. (He had shaggy blonde hair, a Chinese symbol tattooed on his belly, and wore a cowrie shell anklet.) He would model the sheer and mesh clothing, and in many pics you'd get a decent view his cock and balls.