With winter on its way, there is no need to buy more gear if you already own a quality technical jacket. Using your hiking jacket for skiing is entirely possible, as long as you understand the differences in demands between walking and sliding on snow.
Here is how to turn your trail gear into genuine protection on the slopes.
Is your hiking jacket "Ski-Compatible"?
Not all walking jackets perform equally in the snow. To ski with confidence, your jacket must meet two key criteria.
First, a high level of waterproofing (ideally 20,000 mm Schmerber): unlike rain, snow sits on the garment, melts under pressure (during a fall or on a wet chairlift) and eventually penetrates a membrane that is too weak.
Next, check the wind protection. On the slopes, wind is not just a weather phenomenon — it is created by your speed. A jacket fitted with a protective membrane (Hardshell type) is essential to block that icy air and maintain your core warmth.
Why do you feel colder skiing than hiking?
It is simple physics: the faster you go, the more quickly your body loses its warm air. This is what is known as wind chill. When hiking, you walk at around 5 km/h. When skiing, you often descend at 40 or 50 km/h. At that speed, the cold air "strips away" the thin layer of warm air that naturally sits close to your skin.
Result: if it is -5°C on the slopes and you are descending at full speed, your body can feel a temperature close to -15°C. Your hiking jacket, often thinner than a padded ski jacket, must therefore be paired with a more high-performance thermal mid-layer (thick fleece or lightweight down jacket) than the one you would normally wear.
Which technology to go for: Hardshell, Softshell or 3-in-1?
Not all hiking jackets offer the same level of comfort on the slopes:
- The Hardshell jacket: This is the most suitable option. Its protective membrane (Ultrashell type) acts as a total shield. Since it is uninsulated, it offers maximum versatility: you manage your own heat input according to the weather.
- The Softshell jacket: It is perfect for the uphill sections in ski touring thanks to its excellent breathability. However, a softshell jacket is often not recommended for alpine skiing at a resort: it risks becoming waterlogged during a prolonged fall in the snow.
- The 3-in-1 jacket: This is the comfort solution. It already integrates a removable insulating layer, making it the closest thing to a classic ski jacket.
Tips for making up for the lack of ski-specific accessories
If you are using a purely waterproof hiking jacket, you may be missing a few practical details. Here is how to compensate:
- No snow skirt: To prevent snow from going up your back in the event of a fall, wear ski trousers with straps or salopettes that sit high enough on the torso.
- The lift pass pocket: If your sleeve does not have one, place your lift pass in a left chest pocket. Avoid the lower pockets, which are often obstructed by the harness or the backpack belt.
- Wrist seal: Ski jackets often feature lycra inner cuffs. To recreate this barrier against the cold, opt for gloves with long arm warmers that tighten over the cuffs of your jacket.
The key takeaway: Using your hiking jacket for skiing is an excellent economic and durable choice. By strictly following the 3-layer system, you will enjoy the powder with just as much comfort as with dedicated equipment.
