Whether you're wearing them to sleep, exercise, or simply relax at home, Paul Smith 's cotton lounge trousers ensure supreme comfort. They're free of detailing apart from the rainbow-coloured drawstrings, an instantly recognisable designer signature. Shown here with a Paul Smith T-shirt .

• Navy cotton-jersey lounge trousers
• Two slit pockets, multicoloured drawstrings
• 100% cotton
• Machine wash