Calvin Klein CK IN2U, released in 2007, is a youthful fragrance line with separate versions for Him and Her, both designed to capture a spontaneous, modern, and carefree vibe. CK IN2U for Him blends fresh lemon and tomato leaf with a heart of cocoa and a woody-musky base, giving it a clean and casual character, while CK IN2U for Her opens with sparkling citrus and red currant leaf, moves into orchid and cactus florals, and settles into warm amber, cedar, and vanilla. Light, energetic, and easy to wear, the IN2U line is often seen as a fun, everyday fragrance choice best suited for casual or daytime settings.