Imagine walking on a soft forest path where your foot feels the ground but is protected from sharp rocks and branches. Very thin soles provide fantastic ground feel but can be uncomfortable on asphalt and hard surfaces, while thick soles provide protection but block the foot's natural feedback. STANDARD 4mm solves this through a well-thought-out multi-layer construction that provides both feel and protection.
The unique insole construction is the result of four years of testing and development by Realfoot. Eight different layers work together to create a sole that is soft enough to absorb shock from rocks and uneven surfaces, yet flexible enough to allow the foot to bend and move naturally in all directions. This stimulates the nerve endings in the sole of the foot and activates the foot's muscles just as nature intended.
STANDARD 4mm is the insole that automatically comes with all Realfoot shoes and is used daily by thousands of satisfied customers in Europe. Many barefoot enthusiasts who have tried other brands come back to Realfoot precisely because of this insole - it allows sufficient ground feel to train foot power while providing comfort for everyday use on different surfaces.
Realfoot developed STANDARD insoles in close collaboration with Matyáš Kozma, the Czech Republic's leading expert on natural movement. Together, they tested hundreds of combinations of materials and thicknesses to find the one that best simulates the feeling of walking barefoot on natural surfaces. This compromise solution is perfect for most users who want the benefits of barefoot walking without having to go completely unprotected.
With STANDARD 4mm you get replacement insoles for your Realfoot shoes or you can replace the insoles in other barefoot shoes with Realfoot's well-thought-out design. A smart investment for better comfort and longer life for your favorite shoes.