Regatta Men's Ruwan Pure Cotton Cargo Shorts - 44 - Blue - Available at M&S

These utility-inspired, pure cotton cargo shorts from Regatta are practical and comfy for off-duty days. They're designed in a regular fit, with pockets at the side and back, plus flap pockets on the legs for ample storage. Belt loops at the waist and a neat button-and-zip fastening complete this casual style.