Montblanc Mens Belt Bag. SKU: 199393. Color: Lime Green. Montblanc Extreme 3.0 Shoulder Bag with M LOCK 4810 Buckle. Compact yet functional, the Montblanc Extreme 3.0 Shoulder Bag is designed for young urban explorers. Crafted from embossed lime green calf leather with the signature Extreme 3.0 motif and accented with sleek black metal trims, it keeps your essentials organized with internal pockets and credit card slots. The adjustable shoulder strap features the mountaineering-inspired M LOCK 4810 buckle for a personalized touch. Material: Calf leather. Lining: Fabric. Strap: Adjustable shoulder strap. Dimensions: 11.6 H 6.7 W 2.4 D (29.5 17 6 cm).