CK One Summer 2021 by Calvin Klein is a Citrus Aromatic fragrance for women and men. CK One Summer 2021 was 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.