Calvin Klein Eternity Aqua for Men is a modern, natural fragrance that projects effortless daytime elegance with its distinctive blend of aquatic and woody notes. The fragrance was created with an intention to present a new face of Eternity edition for men, highlighted with a modern, casual, aquatic-woody composition. The top notes of the fragrance include chilled cucumber, citrus cocktail, water lotus, and green leaves. The middle notes are plum, lavender, Sichuan pepper, and Virginia cedar. The base notes are musk, sandalwood, guaiac wood, patchouli, and musk.

Positive aspects of the fragrance include its fresh, blue scent, reasonable longevity, and performance, making it a very wearable, pleasant scent that is suitable for most occasions in the warmer months. It is also described as a prescription to fight the effect of high temperature on the body and mind.

Negative aspects of the fragrance include that it may have an "old man" type of scent to some noses.

Ingredients of the fragrance include alcohol, aqua (water), BHT, cinnamal, citral, diethylamino hydroxybenzoyl hexyl benzoate, ethylhexyl methoxycinnamate, and limonene.