Step 3: Adding Jute Layers for Strength and Stability
Jute is not the most visible part of a BIRKENSTOCK sandal, but it is one of the most important.
BIRKENSTOCK’s Footbed construction references a first layer of jute that stabilises the Footbed. In the company’s manufacturing explanation, jute is described as a strong and durable plant based material placed into the mould before the cork and latex mixture is added.
In practical terms, jute helps the sandal hold its structure. It supports the cork latex core and contributes to long term stability under repeated wear. Because the footbed is layered rather than made from one single moulded material, each component can do a specific job.
This is one reason BIRKENSTOCK sandals tend to be discussed in terms of structure rather than just softness.
Step 4: Attaching the Upper Straps
Once the footbed foundation is created, the next step is attaching the upper.
Depending on the model, BIRKENSTOCK uses leather, suede, nubuck, or Birko Flor for the upper. Product pages and materials guidance consistently describe Birko Flor as hard wearing and skin friendly, while leather options are used across many classic styles.
This stage requires precision because the straps need to sit correctly against the Footbed and maintain fit over time. The goal is not just attachment, but alignment. If the upper is even slightly off, comfort and wear pattern can suffer.
BIRKENSTOCK does not present this step as purely handmade, but it does frame its overall process as a mix of precise production and hands on finishing. That balance is part of what separates engineered footwear from basic mass market sandal construction.
Step 5: Sole Attachment and Shock Absorption
After the upper is secured, the outsole is added.
For many classic sandal models, BIRKENSTOCK uses EVA outsoles. The company describes EVA as durable, elastic, scuff resistant, and shock absorbent.
This layer matters because it changes how the sandal performs on the ground. The cork latex Footbed provides the shaped support, while the EVA sole helps manage surface impact and day to day abrasion. In other words, the Footbed shapes the fit and the sole helps protect that structure through wear.
It is a practical pairing. One layer supports the foot. The other absorbs contact with the ground.