. Whether you're into birdwatching or not, Paul Smith 's shirt will make a fun and colourful edition to your wardrobe. It's cut from a crisp Tencel and linen-blend in a relaxed fit that will keep you cool and comfortable on holiday and during heatwaves in the city. Wear yours open over a plain tee. Shown here with Massimo Alba trousers, TOM FORD T-shirt, Castañer espadrilles.