Es - Sti Energy Foam Insoles


Sole tech have lead the way in trainer innovation since the 90's, STI Energy Foam is a Sole Technology Institute engineered formula of high rebound foam, absorbing impacts and supporting the footbed.

- 200% Energy Return Enhanced Rebound Foam(Fixed Load)

- 40% Lighter Than Regular EVA

These things come as standard in the latest update of the legendary Accel Slim shoes, after you've tried em it's easy to understand why


- Small Size 7-8

- Medium Size 8.5-9.5

- Large Size 10-11

- Extra Large Size 11.5-13