Durable, Shape-Retaining Field Notes/A5 Notebook Covers

The user expresses a clear need for A5 notebook covers (like for Field Notes) made from materials that hold their shape and have substantial thickness, as many existing leather and waxed canvas options are 'extremely flimsy.' This indicates a market demand for premium, rigid covers that offer superior durability and a stable writing surface. A product opportunity exists to develop and market high-quality covers made from thicker leather, reinforced waxed canvas, or structured nylon, explicitly designed to maintain their form over time. Emphasize the 'substance/thickness' and 'holds its shape' aspects in marketing.