When it comes to men’s underwear, is there a more iconic brand than Calvin Klein? This legendary designer leads the pack when it comes to creating classic styles with contemporary fits. Using high-quality materials they’ve crafting exceptional men’s Calvin Klein boxers and Calvin Klein briefs that are easily recognised by the branded waistband. Choose from the traditional monochrome styles or go bright and bold with the striking colour, whatever your style - there’s a pair of Calvin's to suit you. With single pairs and multi packs available, discover Calvin Klein boxers and briefs at UnderU today.