The construction requirements were equally detailed: wool felt or closed-cell EVA lining, refined edge finishing, YKK EXCELLA zippers, and solid brass hardware.
Before sending the complete tech pack, the client wanted to confirm whether we could realistically manufacture the product to these specifications.
Their questions covered leather sourcing and tannery qualifications, our previous experience with full-grain vegetable-tanned leather, which production processes we handle ourselves, MOQ by colorway and size, pricing at 50 / 100 / 300 units, clicker die costs, and prototype lead time.
Matching the Leather to the Product
For this type of project, we would not simply pull one vegetable-tanned leather from stock and ask the client to approve it.
We work with a number of established leather suppliers and tannery partners offering different grades, finishes, tanning methods, and price ranges. Based on a specification like this, our sourcing team first narrows the options down to a few suitable materials from suppliers we know and have worked with.
The comparison goes well beyond appearance.
We look at leather thickness, grain condition, firmness, surface consistency, tolerance for natural markings, color consistency, and how the leather behaves during cutting, skiving, edge finishing, and assembly.
If the client also has sustainability or tannery certification requirements, including LWG-related sourcing, those requirements become part of the material selection process. Where applicable, we can provide supporting information for the proposed leather options for the client’s review.
Rather than asking the buyer to choose from dozens of unrelated leathers, we prefer to do the initial screening first and present only the options that make sense for the product.
For a specification like this, for example, we may prepare two or three vegetable-tanned leather options with different hand feel, firmness, or surface character, together with physical swatches and relevant technical information.
The client can then compare the actual materials before the final prototype is developed.
This is particularly important with full-grain vegetable-tanned leather.
Two leathers may both be described as full-grain vegetable-tanned leather, but they can behave very differently in production. One may be firmer and better suited to a structured construction, while another may soften more noticeably and develop a stronger patina over time.
The material has to work for the product, not simply match the wording on a specification sheet.
Who Actually Handles the Leather Production?
The client also specifically wanted to know whether the leather would be cut and stitched within our production system or passed to another factory.
For this type of project, that is an important question.
Leather selection is only one part of the final result. Cutting accuracy, skiving, reinforcement, stitching, edge preparation, and assembly all affect the appearance and consistency of the finished product.
For the processes handled within our production system, we can follow the approved sample and tech pack through the relevant manufacturing stages and quality checks.
Certain specialized components or treatments may still require dedicated suppliers. Custom hardware, plating, or specific component manufacturing are typical examples.
In those cases, the specialist supplier is responsible for that particular component or process. The complete product is not simply transferred to an unrelated factory.
Where a project has additional confidentiality or intellectual property requirements, these arrangements can also be discussed before production begins.
Showing Relevant Leather Work Before Sampling
Another request from the client was to see previous products made with full-grain vegetable-tanned leather.
That is a reasonable request.
There is little value in showing a buyer twenty unrelated leather handbags if none of them demonstrates the material or workmanship they are actually evaluating.
For a project like this, the most useful references are close-up examples showing leather grain, edge finishing, stitching, corner construction, zipper installation, and hardware assembly.
The goal is not to suggest that a previous product is identical to the client’s new design.
It is to give the buyer enough relevant evidence to judge whether we have experience with comparable materials and construction before they commit to prototype development.
The Construction Has to Work as a Complete System
On paper, the client’s requirements look straightforward:
- 1.2–1.4 mm full-grain vegetable-tanned leather
- Wool felt or closed-cell EVA lining
- Burnished and edge-painted edges
- Bonded polyester thread
- 7–8 SPI
- YKK EXCELLA zipper
- Solid brass hardware
In actual production, however, these details affect one another.
Leather firmness affects edge finishing. The final thickness after folding and reinforcement affects stitch appearance. The lining changes the internal structure and bulk. Zipper size and installation method affect the surrounding leather construction.
Solid brass hardware can also change the overall weight and balance of the finished product compared with standard zinc-alloy hardware.
For that reason, we do not evaluate every component in isolation. The complete construction needs to be tested during sampling.
For example, if the project calls for both burnishing and edge paint, we need to see how the selected leather responds to sanding, burnishing, primer, and edge coating.
The requested 7–8 stitches per inch (SPI) can also be followed, but thread size and needle selection still need to be tested against the actual thickness of the assembled leather layers.
That is one of the main purposes of the first prototype.
MOQ and Pricing Depend on the Final Material Combination
The client asked for MOQ by colorway and size, together with pricing at 50, 100, and 300 units.
We prefer this type of detailed inquiry to a simple request for the “lowest price,” because premium leather goods cannot always be quoted accurately from a product photo alone.
Order quantity is closely tied to the material specification.
A stock leather color combined with existing hardware may allow a relatively flexible production quantity. A custom leather color combined with specially developed solid brass hardware may have very different minimum requirements.
The same applies to size variations.
If several sizes share the same leather, zipper, hardware, and production setup, there may be more flexibility. If each version requires separate materials or components, the MOQ and cost structure will change accordingly.
Once the leather and component direction is clear, we can calculate pricing for different production quantities more accurately instead of giving the client one generic leather-goods price.
Where clicker dies or other dedicated tooling are required, those costs can also be quoted separately so the buyer can distinguish between one-time development costs and recurring production costs.
YKK EXCELLA Zippers and Solid Brass Hardware
The client’s specification also called for a YKK EXCELLA zipper and solid brass hardware rather than generic alternatives.
With a component such as YKK EXCELLA, the requirement involves more than simply specifying the brand. Zipper size, tooth finish, tape color, slider, and puller configuration all need to work with the final design.
Solid brass hardware also needs to be evaluated separately from standard zinc-alloy hardware.
The hardware shape, dimensions, weight, finish, and whether an existing component can be used or a custom part needs to be developed can all affect MOQ, tooling, cost, and lead time.
These details are normally confirmed together with the main material and construction direction before production pricing is finalized.
Before the Complete Tech Pack Arrives
At this stage, the goal is not to finalize every production detail by email.
The first objective is to determine whether there is a realistic path forward.
Before receiving the complete tech pack, we want to establish that suitable leather can be sourced, the intended construction is achievable, the specified zipper and hardware can be obtained, and the client can be given a reasonable indication of MOQ, sampling cost, tooling, and production pricing.
Once the tech pack is available, the project can be reviewed in much greater detail.
We can then check the pattern, dimensions, material thickness, reinforcement, edge construction, stitch placement, zipper installation, hardware, lining, and overall assembly against the client’s actual product requirements.
For technically demanding leather projects, this early discussion is useful for both sides.
The client gets a clearer understanding of what is realistically achievable before committing to development, while our team has enough information to prepare the right materials and production approach for the first prototype.
