Volcom Petrolstone ADJ Hat The Volcom Petrolstone ADJ Hat delivers relaxed style with classic snapback functionality. Made from unstructured twill, it offers a comfortable, low-profile feel that breaks in naturally over time. A direct embroidered front graphic adds signature detail, while the interior half moon mesh stay provides subtle structure. Finished with a plastic snap adjuster and Stone flag label at the back, it&';s built for everyday wear. Details Material: Unstructured twill Fit: Adjustable snapback Closure: Plastic snap adjuster Features: Front direct embroidery and back Stone flag label Interior: Half moon mesh stay for added structure