One set is BROWN and 4.8 mm thick. The other is BLUE and 3.3 mm thick.
They are made of Dry Alive™, a microfiber material eight times more breathable than calf leather, which also has antiallergic, antibacterial and anti-odour properties.
If you feel that your shoes are not tight enough, no worries, just use any of the two extra sets of insoles.
How does it work?
Simply insert the extra insoles inside the shoes, and they will stay in place. No glueing is required, insoles have been cut exclusively for your order and should fit perfectly.