Somebody ought to check the temperature in hell, because judging by today's Threeasfour show, it must be about freezing down there. It wasn't shocking that this Threeasfour show was great—designers Gabi, Ange, and Adi have made several powerful collections in the past. No, the shocking thing was that this collection was not only great, but commercial. Really, truly commercial. Threeasfour are going to sell some clothes this season.

For evidence of that, look no further than the show's simplest pieces, the relaxed silk dresses in color-blocked silk. On their own, they hardly screamed avant-garde—they just looked like the kind of easy, pretty pieces women like to throw on in the summer. But as the show went on, the Threeasfour designers built on the principles those dresses established: There was a clear progression to the elaborate statement pieces, such as an asymmetrical coat patchworked with irregular color forms, or a minidress appliquéd with similar shapes off of which a swath of burgundy mesh was draped in a great whorl. The intellectual rigor in the collection was palpable.

But back to shopping. How about that fantastic swimsuit?! And that killer burgundy tracksuit—the one with the racerback hoodie and the pants made out of paneled mesh? On the "want" list, for sure. And on the "need" list, you can add that tan jumpsuit with the slit legs and giant circular zip. Accessible? Sure. But kudos to the designers for managing the neat trick of appealing to the masses (or, more realistically, a wider range of sophisticated shoppers) without dumbing down their brand or sacrificing its aesthetic signatures.