Back in September we told you all about Loeffler Randall's newest addition to their drool-worthy wares: an ultra-dope rain boots collection. By now all the gals in the office have a pair (and wear 'em with the slightest chance of a drizzle), so LR's latest addition to their roster makes perfect sense. Or should we say purl-fect—the brand has teamed up with the knitting and craft shop Purl Soho, so beloved by downtown scenesters and yuppies alike that it's often hard to make it inside the door during the winter months. The collab, which we're telling you about first, is a DIY knitting pattern that fits like butter into the rain boots and rain booties. Just in time for an extra injection of warm and cozy, these wool stirrup socks line your boots to encase legs and feet, giving a proverbial middle finger to the elements. The pattern has step-by-step instructions for knitting a long sock or shorter options, while the shape and design make these linings a good fit for any type of Cinderella. All throughout December, Loeffler Randall will be including the exclusive Purl Soho Stirrup Sock pattern with all orders for the rain gear. We're loving that snap of color peaking above the brim and can't wait to wear these babies over tights or our top cold-weather jeans. Sorry, we've got to say it again—this team-up is purl-fection.