The Italian eyewear retail chain Salmoiraghi & Viganó started selling a new line of sunglasses carrying the Hydrogen label and its skull logo on June 22. It began selling the line in 30 stores and is rolling it out through all its stores from the beginning of July. Competing with the likes of Diesel and Gas, Hydrogen is a trendy Italian brand of jeans, launched in 2003, that generates annual sales of about €8 million.