ISRU Hat

Made in the U.S.A under the strict supervision of the Western Hydrodynamic Research Institute. Shock Cord Bungee closure: constructed out of nylon cased, multi-stranded rubber core and secured by brass grommets to prevent pull outs. Embroidered logo. U.S. Patent No. D923,920 

Material: 60% Cotton 40% Polyester

S/N: 2026.021

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