4 Season High-density EVA Boot

4 seasons high-density European EVA boot.
Using air as thermal insulation.
Micro-bubbles of air are trapped in the hull thus creating a ultra-efficient barrier against the cold.
The boot can be worn with a removable liner (not included) adding comfort and warmth to your feet, allowing you to adjust to all seasons.
Moreover, as the shell of the boot is composed mainly of micro-bubbles, they are incredibly light and 100% waterproof.