The Levi's Trucker jacket is an indisputable classic. Lightweight, ruggedly handsome and incredibly versatile, it first debuted in the 1930s. Decades later, the jackets are still in style, now more than ever—worn over and under everything from T-shirts and jeans to top coats and trousers. In fact, a few contemporary labels are putting a modern spin on this iconic piece, tweaking the traditional form and modernizing the fit and finish. From Margaret Howell's workwear-inspired blazer and Denim & Supply's waxed version to A.P.C.'s trim bomber style (complete with a leather collar), you could certainly say this old sartorial dog has learned a few new tricks this spring.