CK One is a Citrus Aromatic Unisex fragrance for women and men by Calvin Klein, launched in 1994.
Top notes: pineapple, green notes, mandarin orange, papaya, bergamot, cardamom and lemon;
middle: nutmeg, violet, orris root, jasmine, lily-of-the-valley and rose;
base: sandalwood, amber, musk, cedar and oakmoss.