We conduct field and laboratory tests on people's sensitivity to the cold with a panel of customers to measure the thermal insulation of our boots at rest (static) and when walking (dynamic). This allows us to know precisely to what temperature your boots will protect you. Temperature limits for comfort are indicated for your boots. We take into account the fact that men and women feel the cold differently.

Tested in the laboratory, the boots provide optimal impermeability. The boots are initially immersed in water with pressurised air inside to check for bubbles on the surface of the boot. They are half-immersed and then placed on a mechanical arm that simulates walking. We then check whether the inside of the boot is still completely dry. These laboratory tests are complemented by field use and ageing tests.

During the waterproofing test, we test 3 levels of waterproofing: 2000 flexes (around 4 km of walking), 4000 flexes (around 8 km of walking) and 8000 flexes (around 16 km of walking).