Ck One Summer Perfume by Calvin Klein, For a unisex aroma you do not have to wear only during the summer, you can enjoy CK One Summer perfume . This fragrance was released in 2004 from Calvin Klein. It has many fruity accords throughout its composition, and it opens with an intense scent of citruses and kiwi. This leads into a heart of cactus and blueberry leaf. Finally, the base is made up of an earthy musk. Both you and your partner will enjoy this perfume any time you wear it.