This vintage Italian advertising poster promotes Idriz, a once-popular brand of effervescent powders used to turn ordinary tap water into homemade sparkling water. Designed in a bold, eye-catching graphic style typical of mid-20th-century Italian advertising, the poster highlights the product’s refreshing, fizzy appeal while showcasing Idriz as an innovative household staple of its time.

Today, Idriz powders are no longer widely available, but the poster survives as a collectible piece of retro Italian commercial art, valued for its charm, colour, and nostalgic appeal.