CK One, a timeless unisex fragrance from Calvin Klein, is described as a fresh, clean, and modern scent. It's known for its balance of citrus, green, and woody notes, making it versatile for everyday wear. The fragrance opens with bright notes of bergamot, lemon, and pineapple, followed by a heart of jasmine, violet, and nutmeg. Its base notes of musk, amber, and cedarwood add a warm, subtle depth.