Slip on a modern icon with Calvin Klein men's underwear. With a range of styles, from relaxed boxers to signature briefs, you'll always find the perfect fit. Our boxers will take you from off-duty lounging to all-day ease with soft, breathable fabrics, and our form-fitting trunks deliver second skin comfort fused with the bold logo waistband. Each pair is deisgned to fit seamlessly under clothes. The classic trunks in high-stretch cotton sit on your waistline for a smooth fit under trousers. Low-rise trunks sit just below the waist and are designed to work with low-rise jeans and shorts. Stock up on Calvin Klein men's underwear for the perfect foundation day in, day out.