Captivating fragrance of CK One cologne makes it a hit in segment of unisex fragrances. Calvin Klein One perfume has something for everyone in its very body. top notes consisting of orange, papaya, pineapple, bergamot, and lemon gives it its citrus accords. mainly flower accents to appeal to ladies and Calvin Klein One perfume closes with strong base notes consisting of some of most powerful and magical fragrances that are a must have in every perfume.