CK One Summer 2021byCalvin Kleinis a Citrus Aromatic fragrance for women and men.CK One Summer 2021was launched in 2021. The nose behind this fragrance is Clement Gavarry. Top notes are Watery Notes, Grapefruit and Lemon; middle notes are Rhubarb, Watermelon and Eucalyptus; base notes are Peach, White Woods and Ambroxan.