Shop › Espresso Research Institute Dad Hat Image 1 of 5 Image 2 of 5 Image 3 of 5 Image 4 of 5 Image 5 of 5 Espresso Research Institute Dad Hat $26.95 Caffeine is calling. Espresso Research Institute Dat Hat. • 100% chino cotton twill • Unstructured, 6-panel, low-profile • 6 embroidered eyelets • 3 ⅛” (7.6 cm) crown • Adjustable strap with antique buckle Quantity: Add To Cart Added! Caffeine is calling. Espresso Research Institute Dat Hat. • 100% chino cotton twill • Unstructured, 6-panel, low-profile • 6 embroidered eyelets • 3 ⅛” (7.6 cm) crown • Adjustable strap with antique buckle