The majority of today’s midsoles and insoles are made with EVA (ethylene vinyl-acetate). EVA is a lightweight material known for being both flexible and cushioning.
EVA based footwear poses a significant problem: to increase cushioning you must soften the material, sacrificing response and durability. To increase response and durability you must harden the material, sacrificing cushion.
Several brands try to find a perfect medium leaving the consumer with little cushion and durability. Typical EVA footwear rarely lasts beyond half a year.
E-TPU (expanded thermoplastic polyester-urethane) is a new material that changes the dynamics of traditional footwear.
The composition of E-TPU is entirely separate from EVA, allowing an increase in response with an increase in cushion.
As a result, E-TPU offers longer durability and more comfort then traditional EVA based footwear.
HOW IS E-TPU MADE?
E-TPU is created from thousands of small air capsules made with a rubber material called TPU (thermoplastic polyester-urethane).
Similar to popcorn: the small TPU air capsules are heated until they expand into a larger shapes with unique sizes and dimensions.
As the capsules expand, they are molded together to create the design of the footwear. This means that every step you take wearing E-TPU soles is on thousands of small pockets of air.
INCREASING CUSHION & RESPONSE
E-TPU’s composition allows us to increase comfort and response by simply increasing the amount of air capsules we place into a mold.
Increasing the capsules leaves more pockets of air to expand and contract together, resulting in higher response and more comfort felt in each step.
E-TPU also gains durability with each additional air capsule as the pockets of air are all separated and take significant use to compromise the inside.
HEFE LUXX CUSTOM BLEND
Hefe Luxx is the first brand to utilize a custom blend of high quality E-TPU to create insoles.
Using raw E-TPU pellets imported from Germany, we found the perfect density to create the blends for our Original and Deluxe
As a pioneer of E-TPU products, we at Hefe Luxx will continue to research and develop the material to bring our customers more comfort with each step.