The jacket's waterproof was tested in a rain shower with 100 litres of water / sqm / hour for 3 hours. This test reproduces the conditions of a heavy mountain downpour.
We measure a fabric's resistance to a water column, in mm (based on the ISO 811 standard). The higher the water pressure resistance, the more waterproof the fabric. A component with a 2000 mm waterproof rating can withstand 2000 mm of water pressure (which is roughly equivalent to a rain shower lasting 2 hours).
With waterproofing greater than 20,000 mm, the Alpinism Ultra-Light jacket offers an extremely high level of waterproofing.
To find out whether a fabric is breathable, we test its evaporate resistance or RET (based on the ISO 11092 standard). The lower the fabric's resistance, the more moisture, generated by an active body, is evaporated, and therefore the higher the fabric's breathability.
We consider that if:
- RET < 9 = highly breathable fabric
- 9 - RET > 12 = slightly or not breathable fabric
The Alpinism Ultra-Light jacket's fabric has an RET of 5.6.
The jacket's hood size makes it compatible with a mountaineering helmet. Its height and depth are adjustable to suit your needs. Semi-rigid visor for improved forehead and eye protection. The high collar provides protection for the lower part of your face.
Pocket and Zip
Outer shell: 1 phone pocket
Two-way front zip that lets you open the jacket from the bottom, giving you quick access to the harness tie-in loop. The zip pulls are easy to use with gloves.
Machine wash at 30°C. Use liquid detergent without fabric conditioner. Close zips and adjust cuffs before putting in machine. Reactive water repellency with adequate treatment after each wash. A whole range of specially made waterproof and breathable fabric care products are available in our Decathlon stores. Using them will allow you to get the most out of your product throughout its life.