Interchangeable inserts allow the user to personalize the arch stimulus strength and choose the sensory experience that feels best

Standard Width: Fit Women's A to AAA and Men's B to C

Ideal for recreational

The 4 Step System comes with 4 interchangeable inserts that allow you to customize how Barefoot Science® works best for you – for reduced muscle fatigue

Barefoot Science® Dynamis Sensory Insoles Biopods Bamboo Dress Socks Interchangeable inserts allow the userInterchangeable inserts allow the user to personalize the arch stimulus strength and choose the sensory experience that feels best. The full length version features 7 stimulus levels via 6 interchangeable inserts. The 3 4 length version features 6 stimulus levels via 5 interchangeable inserts. Now available for pre order. Expected to ship late August.