This lightweight pure-cotton pyjama set is ideal for warmer nights. It includes a stripey short sleeve tee, plus plain shorts with side pockets and an elasticated drawstring waist for a great fit. Both designed in a classic regular fit. M&S' Stay Soft finish keeps the fabric soft wash after wash. All of the cotton for M&S' clothing is sustainably sourced and always will be. 100% cotton (exclusive of trimmings)