Elle's May green and blue issue means an Eco-Style Station for Los Angeles, but in New York, Elle has teamed up with Barneys New York for an eco-fashion windown display-magazine spread. (via Treehugger)

Eight famous designers -- Alexander Wang, Ann Demeulemeester, Bottega Veneta, Derek Lam, Rodarte, Rogan, Stella McCartney and Versace -- reworked pre-loved denim that Barneys collected from its customers last year to create new upcycled high fashion pieces.  Now, those unique outfits are on display in Barneys' windows on Madison Avenue until May 4 -- or in the pages of Elle's May issue.

Those outfits are also up for auction on eBay; the highest bidders will get to own these one-of-a-kind eco-fashionable clothes! Get your bids in by May 10, when the auction ends. All proceeds from the auction will go to Oceana, an international organization that works to protect and restore the world's oceans. 

Upcycled denim meets haute couture
Elle and Barneys New York teamed up with 8 hot fashion designers to turn pre-loved denim into one-of-a-kind eco-fashion outfits.