Vegetable-tanned full grain cow leather takes longer to produce than almost any other hide preparation - tannins from bark and root drawn slowly through the hide over weeks, building a material that firms with structure, darkens with use, and develops a surface record of where it has been. The Oyster pouch carries that material logic through every construction decision. The shell is vegetable-tanned cow leather - firm, dense, holding its geometric form through the day. The saddlery leather strap is a material chosen for tensile strength, not economy: the same category historically used for harness and equipment, now running adjustable across the body or threading through a removable waist belt for hip carry. The interior is unlined - raw vegetable-tanned leather that will develop its own quiet patina against what you carry. Two YKK Excella zippers, one on the main body, one on the back pocket. Stainless steel hardware throughout, with no plating to corrupt over time. Materials: Vegetable-tanned full grain cow leather, saddlery leather; no lining Hardware: Stainless steel Zipper: YKK Excella (main closure 25 cm, back pocket 18 cm) Carry: Crossbody or belt-bag; removable waist belt, adjustable strap Dimensions: 29 cm at longest, 12.5 cm high Origin: Made in Portugal Availability: One piece in stock; next made to order in Portugal over 7-14 working days Firm shell. Unlined interior. Two carries. The structure holds - the patina is yours to build.