Mark Fast, Central Saint Martins grad and knit-wear genius, showed his Fall 09 collection at The Natural History Museum yesterday morning - though you'd be hard pressed to wear his clothes in the fall. After a fake thunder storm via strobe lights and rain music, the young designer sent out a string of super-duper short dresses. They were so short in fact that the models couldn't help but repeatedly tug them down along the runway. There were a couple of chunkier knit pieces - one in dusty pink and another one, banded, in shiny purple. A few came ripped and shredded but the best were such fine knit, varying from sheer to opaque so subtly, that they just looked perfectly worn in. Some of the knits resembled velvet and the last dress was so fringed, so heavy, that you could see the poor model's muscles tensing just to make it move. Luckily the audience responded with very enthusiastic applause - especially considering it was 9am on basically the last day of London Fashion Week.