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See Into Comfort.

See Into Movement.

See Into Style.

C-IN2 (pronounced “see-into”) makes high-quality men’s underwear, t-shirts, and tanks—engineered for comfort, elevated with fashion-forward style, and built to move. With sculpted fits, breathable fabrics, and confident design, our gear blends performance and polish. Since 2005, we’ve helped men upgrade their everyday essentials.

COMFY WINTER STYLES

Warm Layers

Soft, breathable basics built for warmth and everyday comfort—your go-to winter layer.

Pro Performance

Warm, sweat-wicking performance gear engineered for cold-weather workouts and all-day comfort.

Zen Comfort

Smooth, breathable fabric with a relaxed feel—perfect for cozy winter days and effortless comfort.

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.