Eternity Air Cologne by Calvin Klein 3.4 oz Eau De Toilette Spray for Men. On those warm, sunny days, you want a cologne that will have you feeling like a man. Eternity air from calvin klein fits the bill perfectly. It immediately became a hit when it came out in 2018. It opens with an intriguing array of ozonic and sea notes in addition to sweet mandarin orange and juniper berries. The heart brings out notes of lavender, tart green apple and luscious violet leaf. It has a marine base with ambergris, patchouli and seaweed.