<-h2->Calvin Klein Underwear & Briefs<-h2-> Shop Calvin Klein Underwear at Debenhams and refresh your everyday essentials with a modern, confident fit. From minimal branding to iconic logo waistbands, discover underwear designed for comfort, support and easy, all-day wear.<-br->Explore men's underwear styles including trunks, boxers, boxer briefs and hip briefs-ideal for building a reliable rotation for work, weekends and travel. Choose the cut that suits you best, whether you prefer a classic boxer feel or a closer, streamlined fit under jeans and tailored trousers.<-br->Stock up with convenient multipacks, including 3-pack and 5-pack options, perfect for updating your drawer in one go. Complete your essentials edit with Calvin Klein's signature look and a focus on comfort you can count on.