We love it when fashion teams up with a good cause, because it makes spending that bit more justifiable. Last night, in conjunction with a live runway show held at the Pierre Hotel in New York City which featured a sashay of vibrant party dresses and some high profile guests, the Lanvin for H&M collection also opened for auction, with proceeds of sales going to UNICEF. Short of breath yet? That's right ladies and gents—you'll be able to bid on the Lanvin for H&M collection from the comfort of your own living room for the rest of the week, with the auction officially ending on November 26. We here at Refinery29 are sponsoring an item..... this gorgeous black dress with french cuffs and exaggerated shoulders. So, what pieces do you want? Will you bet hard on one or hedge your bets and bid on a few? Either way, we wish you all the fashion luck in the world! Click here to see them all!