Of his design, Percival co-founder Chris Gove says, “The Sherlock came about from trying to create a perfect trans-seasonal offering. Among all the many (many) best Black Friday clothing deals that I've come across, the Percival Black Friday sale is right up there as one of the best and widest reaching. Despite its sleek design, the Sherlock is not only a pretty major men's raincoat, but it also plays host to some rather extraordinary storage, with a huge internal pocket capable of hiding a 13-inch Macbook or, as Gove stresses, a few bottles of red (depending on your priorities).