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See Into Comfort. See Into Style.

C-IN2 (pronounced "see-into") makes bold, high-quality men’s underwear, t-shirts, and tanks. Designed for comfort, confidence, and sex appeal—with modern fits and premium fabrics. Since 2005, we've helped guys look good and feel even better.

Hot Picks for Summer

Make a Splash

Low-rise, quick-dry, and cut to turn heads—these swim styles were made for summer days and poolside stares.

Stay Cool, Look Hot

Fitted or relaxed, our tanks are breathable, versatile, and made to flex with you—on the street or in the heat.

Heat Up Your Top Drawer

Barely-there coverage with bold confidence. Jocks and thongs that move with you—and leave little to the imagination.

Built for Daily Wear. Loved on Repeat.

From go-to basics to best-selling icons, these are the styles that keep showing up in carts—and drawers. Comfort, fit, and performance, perfected.