Shop Men’s Briefs, Boxers, Tanks, and More by C-IN2
Sport Briefs
C-IN2 sport briefs bring athletic attitude into your underwear drawer. With a supportive cut and body-conscious fit, this style is made for movement, confidence, and a touch of sex appeal. Inspired by performance silhouettes but designed to look as good off the field as on it, sport briefs are bold, versatile, and always ready to play.
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.