Refreshing, light, and clean, the Calvin Klein’s Ck One perfume is a fragrance for men and is designed to fuse two minds, souls, and bodies into the passion and heat of one, which is why it is named Ck One. A fresh citrus spray with a minimalistic and sleek design, it fuses notes of rose, pineapple, bergamot, violet, musks, and nutmeg into one bold scent.