Presenting Mulberry's Spring / Summer 2013 Bag Collection. The English garden inspired collection looks fresh and adorable. The brand has also introduced their newest bag, the Willow Bag. It is named after Mulberry's second factory in Somerset that will open next June. It is a practical tote bag, that has a detachable envelope clutch on the front. Kate Moss was seen sporting this latest bag on the brand's fashion show.