Shop Men’s Briefs, Boxers, Tanks, and More by C-IN2
Undertone Collection
Vivid color meets everyday comfort. C-IN2 Undertone underwear delivers bold hues, soft fabrics, and a modern fit designed to brighten up your basics. Perfect for adding a pop of confidence to your daily rotation.
For nearly two decades, C-IN2 has redefined men’s underwear with premium materials, sculpted fits, and bold design. With over 100,000 customers and counting, our products deliver confidence from the inside out.
C-IN2 is a New York–born men’s underwear and apparel brand with one mission: to make every man look good and feel confident. We design premium basics and fashion-forward styles with innovative fabrics, engineered fits, and durable construction that lasts. Working closely with our partners, we create unique materials and refine every detail—from the cut of a t-shirt to the fit of a brief—to deliver comfort and style you can feel every day. Inclusive, empowering, and unapologetically bold—C-IN2 is made for every body.
