Ck In 2U by Calvin Klein Cologne. Ck In2U from Calvin Klein is the right cologne for the man who likes to take the time to relax. Whether it’s worn for a friend’s barbecue or an outdoor adventure, Ck In2U is the perfect scent for your favorite casual activity. Ck In2u by Calvin Klein is a cologne for men that Calvin Klein termed “technosexual generation” that is a perfume for men that is classified as an Aromatic fougere fragrance for men that consists of perfume notes of lime, gin fizz, grapefruit leaves, frosted tangelo, pimento, shiso, cocoa base, vetiver, white cedar and musk to form a well balanced cologne that was created by Carlos Benaim, Bruno Jovanovic, Loc Dong and Jean-Marc Chaillan.