This 5-panel cap from the Paperboy x WHR collaboration is constructed from durable 100% nylon with a clean, minimalist design. Features Western Hydrodynamic Research branding printed on the front, side, and under the bill. The cap includes a shock cord bungee closure made with nylon-cased, multi-stranded rubber core and brass grommets to prevent pull-outs, providing a secure and adjustable fit. Designed and tested in California by the WHR Institute.