Product Designer for Leather Accessories

I'm looking for a product designer to help develop the first products for a new accessories brand, starting with cardholder and wallet. I already have an initial design direction and references. I'm looking for someone who can help refine the concept and turn it into a product ready for prototyping and manufacturing. The first product will likely combine leather with custom stainless-steel details, so experience with leather goods and metal hardware would be a strong advantage. I'd need help with: - Refining the product design and construction - Material and hardware recommendations - Technical drawings / CAD where needed - Creating a manufacturer-ready tech pack - Preparing the design for prototyping and sampling Please share examples of relevant product or accessories design work, especially leather goods, bags, wallets or custom hardware.