Outer sole of: 67.0% Synthetic Rubber, 33.0% Ethylene Vinyl Acetate ; Upper of: 78.0% Polyamide, 20.0% Polyurethane, 2.0% Synthetic Rubber ; Lining and sock of: 100.0% Polyester

We have classified our products in terms of performance and features for 3 levels of Mountain Walking:- occasional: about 10 hikes per year of about 3 to 4 hours in length, covering less than 10km and less than 700m in elevation gain.- Regular: about 20 outings per year. 4 to 6 hours, 10 to 20 km, 700 to 1200m of elevation gain per outing.- Intensive: more than 20 times a year. More than 6 hours, more than 20 km, 1200 to 2000m of elevation gain per outing.

For the fabric on the cuff lining and on the inner sole coating of these shoes, we dye the thread during manufacturing to reduce the environmental impact. Textile dyeing requires a lot of water but also produces waste water from the dye baths. To reduce this environmental impact, we use a mass pigmentation process that involves adding the colour pigments when the yarn itself is produced.

The grip of our soles is certified. To be awarded certification, the boots must pass laboratory tests to assess the grip rate on different surfaces (Smooth, Rugged, Dry, Wet). To validate these tests, we assess the quality of our soles in the field, in the mountains, by a panel of representative testers over 500 km

In a laboratory, the boot is immersed in water to mid-height on a mechanical arm that flexes to simulates a number of steps. With this test we can determine a time and number of km that the boot can walk while staying dry. Then we confirm in the field or under the rain, that the shoe meets its promises.

To keep your feet dry, we advise you to use a waterproof gaiter or mini-gaiter to protect the top of your boots and prevent water, pebbles and sand from getting in.We advise re-waterproofing your boots twice a year using a re-waterproofing agent (search for ‘waterproofing’ on our Decathlon website) which will help you restore the original water-repellent qualities and help prevent stains on the outside.

The most important thing is to try on several sizes and styles of boots to find the one most suited to you! You can take a size above your usual one to prevent the toes from bumping into the toe box when going downhill, provided the foot is properly supported to avoid friction.Tip: keep your toenails short and, before a long descent, check that your lacing is tight enough to prevent your foot from sliding forwards inside the boot.

Some Decathlon stores have a test route.1. Try on both shoes, standing up, with the socks worn for hiking. 2. Tighten the laces, taking care to correctly balance the tightening.3. Check two points:- the heel does not come up before the boot when you walk uphill.- the foot does not slide and the toes do not press against the front when going downhill.4. Try on several sizes and models.Break them in gradually to adapt them to your foot.

Discover all our tips here:https://conseilsport.decathlon.fr/conseils/9-astuces-pour-eviter-les-ampoules-tp_10725

A waterproof shoe will be less breathable than a non-waterproof shoe. Socks like the MH500 with a medium-length upper are therefore better for wicking away perspiration and reducing friction.

All our models are tested by users representative of our target market in conditions identical to those you encounter yourself when using them. We believe that carrying out 'real-life' testing is the only way to design and continuously advance the technical relevance and design of all our Quechua products.

Store in a well-ventilated dark, dry place.

Imported