celeb designers come and go, but good style stays forever.

When we first heard that Sienna and Savannah Miller would be parting ways with Twenty8Twelve, the label they founded back in 2007, we were a bit nervous; could the brand continue to design tough-but-girly, cool-but-wearable pieces without the British sisters?

Judging by the spring '13 lookbook, the answer is a resounding yes. From flared trench coats to ruffled floral dresses to cherry ChapStick red leather jackets, there's something for everyone in this collection. Especially if you like a '50s twist to your outfits, since there are plenty of pin-up and Teddy Boy-inspired items. (Though we promise, it's not costume-y at all.) Which, really, shouldn't come as that big of a surprise--after all, Twenty8Twelve's longtime design team is still intact (don't tell us you thought Sienna was coming up with all of the pieces…).

If this is just a taste of what's to come, then we plan on keeping a very close eye on Twenty8Twelve in the seasons to come.

Visit twenty8twelve.com for more info.