What with the vagaries of the British summer is sage advice never to leave home without a jacket. And if you need something a bit smarter than the lightweight navy anorak with white piping that the world and his dog has been stepping out in this June, check out these slightly more formal summer jackets.
Merc Hemingway Stripe Single Breast Blazer, Navy/Red £179
Opt for some Mod magic with Merc's Hemingway blazer with vertical stripes. The jacket is cut with a regular fit and tailored with a single breast with 3-button fastening and 2 flap-covered front pockets. John Lewis