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AIR PERMEABILITY

Air permeability is an important functionality of many of our jackets. Air permeability, or breathability, is a technique that allows moisture to escape from inside to outside while ensuring that water from outside does not enter. Microscopic openings are made in the TPU lamination (LINK) of our fabrics. These are smaller than water droplets, preventing water from penetrating the fabric but allowing vapor to escape. Breathability is tested using the Moisture Vapor Transmission Rate (MVTR). This test measures the rate at which moisture passes through fabric. The MVTR is measured in grams per square meter of fabric per 24 hours (g/m2/24h). How to imagine this is that a fabric with a breathability of 3000g/m2/24h, can allow up to 3000 grams of moisture vapor per m2 of fabric to pass through in a 24-hour period. The higher the MVTR value, the better the fabric breathes.

Breathability - Exercise
>3000 g/m2/24h - Light exertion, such as normal cycling
>5000 g/m2/24h - Heavy exertion, such as hard cycling

It is important to note that breathability measurements are influenced by factors such as fabric construction, thickness and any coatings or treatments applied to the fabric. In addition, individual perception of breathability may vary depending on your activity, environmental factors and personal preferences.