The note of 'denim' is not a botanical essence but an abstract olfactive construct, a masterful illusion designed to evoke the tactile and ambient qualities of the fabric itself. It presents as clean, crisp, and remarkably dry, almost powdery in its initial impression, yet with an underlying subtle starchiness that speaks of newness and meticulous pressing. There's an undeniable freshness, often leaning slightly ozonic or aldehydic, reminiscent of air circulating through freshly laundered cloth, devoid of any floral or fruity sweetness. It can carry a whisper of metallic coolness, like the snap of a button or the faint tang of indigo dye, though never harsh or industrial. Its texture is akin to a fine-grained, smooth fabric against the skin, dry rather than damp. Projection is typically moderate, designed to be an intimate, comforting aura rather than a commanding sillage. Longevity is surprisingly good for a 'clean' accord, often behaving as a lingering heart or even a subtle base note, providing an anchoring sense of polished ease.