Say goodbye to leaks, thanks to our highly absorbent cotton-modal period knickers. These high leg briefs are built with a clever three-layer gusset that keeps you dry, comfortable and odour-free. StayNew™ technology ensures longer-lasting colour and finish. Made with responsibly sourced Tencel™ modal. We only ever use responsibly sourced cotton for our clothes.\n M&S Collection: versatile styles in modern shapes with unique and playful details.