Montblanc Unisex Pen Pouch. SKU: 220009. Color: Ink Blue. Montblanc Extreme 3.0 1 Pen Pouch. The pen pouch, crafted from elegant ink blue leather and printed with the iconic Extreme 3.0 motif. Designed with a front flap closure, it opens to reveal a dedicated compartment perfectly sized to hold a writing instrument such as the Meisterstuck Classique or LeGrand, combining refined style with practical protection. Material: Leather.