Custom Espadrille Outsoles.
Without Metal Tooling.
Your outsole, your signature.
Grip, texture, logo, and premium detail—enabled by our patented injection process with SiOCAST silicone molds for agile validation and short-to-mid runs.
- Lower entry cost: avoid high-risk metal tooling investment
Faster launches: iterate designs and seasonal drops without long lead times
On-demand friendly: ideal for capsules, collaborations, and limited editions
Sustainability-ready: optional circular material partnership with Balena Science (BioCir®flex)
The industry challenge
Why innovation in espadrilles often hits a wall.
High industrialization cost
Metal tooling requires significant upfront spend and risk—especially without guaranteed volume.
Commercial calendar pressure
Between design, tooling, testing, and revisions, the outsole arrives late—blocking drops and collaborations.
Minimum order constraints
Many industrial routes penalize short runs.
Low differentiation
Generic outsoles force price competition instead of brand identity.
Result: brands give up on a custom outsole—the component that most visibly “signs” the product.
Your outsole is your brand’s fingerprint
A custom outsole unlocks differentiation, premium perception, and seasonal agility—while reducing copy risk.
Benefits list
Build identity through relief, logo, pattern, and visual storytelling
Launch limited editions without locking capital into metal tooling
Validate 2–3 iterations before standardizing
Enable on-demand production without strict MOQs
Add a credible sustainability narrative aligned with market expectations
Agile outsole production using injection in silicone molds
SiOCAST replaces metal tooling with SiOCAST silicone molds engineered for injection—enabling faster design iteration, accessible industrialization, and short-to-mid production runs.
What you can customize
Tread / grip: traction geometry, channels, microtextures
Branding: integrated logo (positive/negative), signature marks
Look & feel: relief depth, premium detail, finishes
Color: seasonal variants (feasibility-dependent)
Performance tuning: directional targets (flex/durability) validated during feasibility
From design to functional outsoles.
In days, not months
STEP 1
We create the 3D master from your design (or co-design with you) to capture outsole geometry and detail (tread, textures, logo, relief).
STEP 2
mold
We produce silicone injection-ready molds using our SiOmold system—enabling quick iteration and much lower entry cost than metal tooling.
STEP 3
make
We inject outsole parts using our patented injection process with SiOCAST silicone molds, designed for agility in short-to-mid runs.
What this enables
Lower industrialization barrier for brands and workshops
Fast iteration (pattern, branding, relief)
Controlled risk: validate market first, then scale
Sustainable materials:
collaboration with Balena Science
Circular material option for espadrille outsoles: BioCir®flex by Balena
For espadrille outsoles, SiOCAST collaborates with Balena Science and their BioCir®flex material—a biobased, durable, flexible thermoplastic elastomer designed for a clear circular end-of-life and compatible with injection molding, extrusion, and 3D printing.
Key points you can communicate (responsible, spec-based claims)
REACH, RoHS, and EN 71 compliant
DIN-certified bio-based content: 50–85% (based on ASTM D6866)
Shore hardness: 70A–90A
DIN-certified industrial compostability: compliant with ASTM D6400-04 and EN 13432
Standard processing: usable on conventional injection and extrusion equipment
End-of-life performance depends on the selected grade and the composting/take-back pathway used. We support you in communicating claims correctly.
What Can You Make with SiOCAST in Footwear?
Any small to medium plastic component that today requires a steel mold can be validated or produced with SiOCAST silicone molds.
For Product & Innovation Teams
Explore more outsole concepts per season with real materials, without waiting months for steel molds.
For Development & Industrialization
Validate materials, cycles and QC on real injection equipment, then decide which projects deserve steel tooling.
For Purchasing & Strategy
Reduce tooling CAPEX, de-risk new launches and bring part of your production closer to your design center.
Perfect for R&D centers, pilot lines and local production units that need to move fast without committing to full steel tooling from day one.
Let’s Talk About Your Next Collection
Whether you met us at a footwear event or you just discovered SiOCAST, the easiest next step is a short video meeting.
We’ll review your current development workflow, typical outsole volumes and timelines, and show you how SiOCAST can fit into your existing processes.
