Hey Dude SIROCCO 40140-100 sneakers are a flat shoe model for men made of faux suede. The light beige upper material is made of fabric, and the lining and insole are also made of fabric. The outsole is made of rubber. These sneakers are available in sizes ranging from US 7 to US 12.5 and UK 6.5 to UK 12. The Hey Dude P23f sneakers are suitable for spring and summer seasons.