
Pashion Footwear is a startup creating the world’s first fully convertible high heels.
As Product Director, I oversee the design of our innovative products.
Inventing Convertible Heels
The fundamental innovation behind our convertible high heels is our patented removable Stelo technology, an invention which I developed. Nearly all aspects of our shoes, from the upper to the sole materials, are specially engineered to optimize the shoe’s transformation between heel and flat. The Stelo provides rigidity to the shoe when worn as a heel as a traditional shank would. The heel is specially designed to stay securely installed during use, and remove easily when the shoe is to be transformed to a flat. Altogether, our shoes utilize several cutting-edge materials and processes to make a product considered impossible by the footwear industry possible.
Designing Seasonal Product Lines
Illustrator, Fusion 360
At the beginning of each season, I create a line plan based on trend forecasts and customer feedback.

Once the line plan is confirmed, I create tech packs for the roughly 25 new upper styles, graphics, embroideries, 3D CAD, etc. for the season and provide them to the supplier. I then iteratively review and revise samples until all new products are confirmed.


3D Art
Blender, Photoshop, Coding
Given the transformative nature of our shoes, renders are the most effective method to show their ability to smoothly convert between heel silhouettes and heights. I am responsible for all rendered product imagery, as well as miscellaneous marketing assets. This includes modeling new uppers and heels, rigging them to transform between flat, 1.5”, 3”, and 4” modes, and creating new upper materials.












All shoes are bundled with standard heel kit pairings on the website. Rendering a typical season with 20 shoe colorways along with their corresponding 10 heel kits from several angles results in around 800 total renders, just to cover these standard bundles. Occassionally, changes are requested that require rerendering the entire product catalog (5000+ renders). To better accomodate these kinds of changes, I have developed several scripts to automate the bundling of shoes and heel kits by color. This means shoes and heel kits can be rendered separately and combined later.
© Seiji van Bronkhorst 2024