Customization & Samples

From an Existing Sole to Your Next Custom Design

Choose a current KAJA model or develop a new sole from drawings or physical samples. We review materials, tooling, compatibility and the sampling plan with you.

Existing Sole Selection

Start with a model in our sole catalog. Existing mold sizes vary by model; check the developed size list on its product page.

Share the finish, color references, sizes and quantity you need. Review compatibility with your upper and last before confirming production.

Explore shoe soles →

New Sole Development

Send a drawing, technical specification or physical sample. We assess the shape, tread, construction and agreed size list before planning tooling.

New designs and sizes beyond existing tooling require new molds. Tooling costs, samples and schedules are agreed per project.

What Can Be Customized?

Your requirementHow we review it
Colors and hardnessFormulation can be adjusted to your agreed requirements.
Shape, tread pattern and molded logoChanges beyond existing tooling require new molds.
SizesWe accept development requests within EU 22–46. Existing sizes vary by model; additional sizes may require new tooling.
Material and performance targetsMD Phylon, EVA, rubber and TPR constructions are evaluated around the application. Customers arrange testing, and we use their feedback to adjust formulations toward agreed targets.

Samples Before Production

Free samples of existing sole styles are available, with shipping paid by the customer. New mold development and samples for undeveloped designs are arranged separately.

Check appearance, size and upper/last compatibility with your team. Agree on the final material, finish and production specifications after sample review.

What to Send Us

  1. Product model, reference photos, drawings or a physical sample.
  2. Footwear application and intended construction.
  3. Required sizes and quantities by size.
  4. Color references, logo details and finish requirements.
  5. Material specifications, performance targets and preferred schedule.

MOQ, tooling charges, shipping and the production schedule are confirmed for each project.

Discuss Your Footwear Project

Contact Ken Zhu with your reference model, size list, colors and estimated quantity.

WhatsApp KenEmail ken@cnkaja.com