3 millimetre thick, one piece leather upper protects from the cold and water.
The boot comes high enough to protect your ankles real well but not so high it should be uncomfortable.
The sole is rigid and therefore crampon compatible. You can use semi automatic or strap crampons.
The sole has a PU shock absorbing wedge.
The padding used inside and on the tongue make the boot super comfy, and what's more it does not thin out with wear!
Eyeletlacing are very tough.