The Calvin Klein Boxer Brief 4 Pack in size medium is a comfortable and stylish choice for men's underwear. Made from a blend of polyester and elastane, these boxer briefs offer a snug fit with added stretch for ease of movement. The assortment of solid colors and moisture-wicking feature make them practical for everyday wear. Machine washable for easy care, this set of 4 boxer briefs from the iconic Calvin Klein brand is a quality addition to any underwear collection.