Crafted with precision and designed for daily sophistication, the Quantum Core – 100% Hand-Stitched Vegetable-Tanned Leather Minimalist Wallet – Copper Brown , Kolkata, West Bengal embodies exquisite regional leather craftsmanship. Handmade by master artisans in Kolkata, West Bengal, this accessory highlights refined textures and exceptional pocket utility. Presented in a rich copper brown shade paired with the distinct quantum core design pattern, it uses premium leather that develops a magnificent personalized patina over time. Built for modern convenience without compromising on traditional elegance, it offers a slim profile, secure organization, and enduring durability.