Calvin Klein CK One Eau de Toilette, Cologne for Men or Women, 3.4 oz Calvin Klein CK One Unisex Eau de Toilette is the cult classic for a diverse world, capturing the universal human spirit that exists inside each and every one of us. Unapologetically bold, this is a men's eau de toilette and women's eau de toilette in one, a youthful, fresh proclamation of the energies that flow within us all. The original genderless scent, Calvin Klein CK One was the first perfume to throw out the perfumery rulebook, and has been the go-to eau de toilette for unconventional anarchists at heart ever since. A clean, sharp celebration of our differences and similarities, in a unisex perfume evocative of limitless opportunity, for those unafraid to break with convention. The Fragrance Gender-fluid and uncategorizable, this green citrus perfume from master perfumer Alberto Morillas is an uplifting accord of green tea, papaya, and bergamot to refresh, grounded in the heart with perfectly balanced notes of nutmeg, violet, cardamom, and rose and deepened at the base with glorious amber and musk for a muted, blurred quality. Brand Story The company's first perfume, Calvin, was launched in 1981. Calvin Klein has since launched a series of successful perfumes that, for many, capture the spirit of the decades in which they were introduced, including Obsession (1985 for Women, 1986 for Men), CK One (one of the first fragrances marketed as unisex, in 1994), and Euphoria (2005 for women, 2006 for Men).