- Natural spray
- Top Notes: Watery Notes, Grapefruit, Lemon
- Middle Notes: Rhubarb, Watermelon, Eucalyptus
- Base Notes: Peach, Ambroxan, White Wood
CK One Summer 2021 by Calvin Klein is a Citrus Aromatic fragrance for women and men. This is a new fragrance. CK One Summer 2021 was launched in 2021. The nose behind this fragrance is Clement Gavarry. Top notes are Watery Notes, Lemon and Grapefruit; middle notes are Watermelon, Rhubarb and Eucalyptus; base notes are Ambroxan, Peach and White Woods.