Few garments are as timeless as the trusty mac coat. The outerwear staple has been keeping style-conscious men protected against the wind and rain for hundreds of years, and its appeal doesn't look set to fade anytime soon. Yet with so many iterations on the market, it can be hard to know where to start. Our advice? Opt for something clean-cut and classic, like Percival's bestselling waterproof Sherlock mac. The London-based label has been producing the Sherlock for six seasons (and counting) and it's not hard to see why.

Made in London from 100% cotton, Percival's Sherlock mac boasts waterproof bonded lining that promises ultimate durability and protection. For enhanced functionality, the latest version of the Sherlock features a 13" Macbook pocket on the coat's interior, which can just as easily be used for carrying any of your everyday essentials. It's a wardrobe classic with a contemporary twist.

Offering the elegance of a classic trench coat but with a cleaner, less fussy silhouette, the Sherlock is easy to wear and ultra-versatile. Choose from a range of classic colours, including perennially stylish black, navy and tan. This is a wardrobe addition that's designed to transcend trends and stand the test of time. Throw it on over anything from workwear-inspired separates – think selvedge jeans and an overshirt – to sophisticated tailoring. Getting caught in the rain has never looked so good.

Don't stop there.... Discover Percival's characterful embroidery collection.

Shop the Percival collection at OPUMO.