Comfort temperature rating -5°C / Limit temperature rating -10°C
Breathable, waterproof membrane to keep your feet dry.
Rubber outsole with 4 mm lugs for good grip on snow.
Side opening with a zip for quick and easy foot entry.
Measurement of the boots' thermal insulation.
Based on the field and lab tests carried out to measure the perception of cold with a panel of users, we gauge the thermal insulation of our boots when stationary (static) and when moving (dynamic). It is now possible to give an accurate measurement of the temperature at which the boots will protect you. The comfort temperature ratings are indicated for the boots. We take into account the differences in the perception of cold between men and women.
Footwear waterproofing test.
These boots, which have been tested in the laboratory, provide the best possible waterproofing. The boots are initially immersed in water with pressurised air inside to check for bubbles on the surface of the boot. Then they are placed on a mechanical arm simulating walking, while half immersed in water. We then check if the inside of the boot remains perfectly dry. These laboratory tests are supplemented with wear and ageing tests conducted in the field.
3 levels of waterproofing.
During the waterproofing tests, we test 3 levels of waterproofing, with 2000 flexes (approx. equivalent to a 4 km walk), 4000 flexes (approx. equivalent to an 8 km walk) and 8000 flexes (approx. equivalent to a 16 km walk).
Waterproof rating of the boot.
This model of boot has been tested for up to 4000 flexes which is equivalent to 8 km of walking.
This boot has been tested in the field in climatic conditions adapted to its use by hikers accompanied by the product manager. In particular, we analyse the technical elements of the boot to validate the product in relation to its specifications and the feedback that you send us.
Our engineers conduct laboratory tests to fully guarantee your satisfaction in use. Among other things, we validate the following elements: strength of eyelets and straps, strength of glued assemblies, toxicology, UV resistance, abrasion resistance of the sole and upper components and accelerated ageing.