Calvin Klein Black Ultra Support boxer briefs feature premium stretch microfiber fabric for all-day comfort and anatomical support. The signature CK waistband with tonal logo embroidery ensures a sleek, low-profile fit without digging in. Designed with contoured pouch construction and flatlock seams to minimize chafing, these briefs offer superior breathability and moisture-wicking performance. Ideal for daily wear, light activity, or layering under tailored trousers. The packaging highlights the 'Ultra Support' technology—engineered for enhanced lift and stability without compression. Three color options shown: classic Black, soft Gray, and muted Navy—each maintaining the brand’s minimalist aesthetic. Perfect for modern men seeking understated luxury, functional design, and iconic branding in essential underwear. Machine washable, fade-resistant, and sustainably crafted with recycled fibers in select batches.