Everyone needs some comfy underwear, so keep them feeling supported and secure with these boy's trunks. Browse a wide range of printed, plain and multipack styles from both high street and luxury brands. Calvin Klein Kids have sets that look just like their main collection, while Bonds have basic designs that are ideal for everyday wear. Elasticated logo waistbands and reinforced crotches from labels including the likes of Stella McCartney Kids and Hugo Boss are the ultimate in fashion meets function.