Stock up your underwear drawer with this 5-pack set of cotton-rich trunks. Regular fit, made from breathable fabric with 4-way stretch for flexibility and support. Cool & Fresh™ technology draws moisture away from your skin so you feel fresh and comfortable. Functional keyhole fly. We only ever use responsibly sourced cotton for our clothes. M&S Collection: easy-to-wear wardrobe staples that combine classic and contemporary styles.