A compact key case designed as a miniature version of The Superior Labor’s iconic engineer bag. Once crafted in canvas, this updated all-leather version brings enhanced durability, longevity, and a refined everyday feel—built to be enjoyed for years to come. Handmade in Okayama, Japan by The Superior Labor, this piece reflects the brand’s commitment to functional design and traditional craftsmanship in a smaller, more portable form. Crafted from premium Japanese glove leather, originally developed for baseball gloves, the material is known for its exceptional strength, flexibility, and lightness. It resists friction, softens beautifully with use, and develops a rich patina over time. The deep-dyeing process ensures color penetrates fully through the leather, while special oil treatments enhance softness and durability. Features Handmade in Okayama, Japan Miniature version of the Engineer Bag design Durable all-leather construction Compact key case for everyday carry Designed to age beautifully with use Strong and flexible glove leather construction Specifications Size: 12.5 × 8 × 3 cm (4.9" × 3.1" × 1.2") Material: Japanese glove leather About the Leather This item is made from high-quality Japanese glove leather, originally used in baseball gloves for its durability and flexibility. The leather becomes softer and more comfortable with use, while maintaining excellent resistance to wear. Deep dyeing ensures rich, long-lasting color, and added oils provide a smooth, supple finish. Care & Notes Natural leather may show variations in texture and color Avoid prolonged exposure to water or moisture Leather will soften and develop patina over time Each piece is unique due to handmade production Brass or metal components (if present) will naturally patina with age Shop the HTS collection here. Shop our TSL collection. Made in Japan
