Calvin Klein design house launched CK One in 1994 as a Citrus Aromatic fragrance for women and men. CK One notes consist of pineapple, green notes, mandarin orange, papaya, bergamot, cardamom, lemon, nutmeg, violet, orris root, jasmine, lily-of-the-valley and rose, sandalwood, amber, musk, cedar and oakmoss. CK One Summer features a combination of vibrant, refreshing notes that includes sharp citrus alongside more earthy aromas. The fragrance opens with a bold, zesty hit of citrus which is infused with aquatic touches to awaken the senses. This intense freshness is amplified by the addition of watermelon and cucumber, with an earthy base of musk and moss adding a masculine edge to the fragrance. Key Features of Calvin Klein One Top Notes: Lemon, Green Notes, Pineapple, Bergamot, Mandarin Orange and Papaya Middle Notes: Lily-of-the-Valley, Jasmine, Violet, Nutmeg, Rose and Orris Root. Base Notes: Green Accord, Musk, Cedar, Sandalwood, Green Tea and Amber.