This article covers everything you need to consider when choosing ski trousers. Ski trousers should keep you warm and, above all, dry throughout your day on the slopes. Because they come into direct contact with snow, they need to be waterproof and breathable, with insulation to keep you warm. Softshell trousers can be a good option if comfort or greater freedom of movement is your priority. Their two-layer construction provides insulation and wind protection while remaining flexible and highly breathable.
Choosing waterproof and breathable ski trousers
Waterproofing is measured in mm Schmerber: the higher the number of mm, the better the membrane performs. Opt for a rating of 10,000 mm or above to stay dry in all conditions. The trousers must also have fully taped seams.
The breathability of a garment is essential: you start to feel cold when you are wet. Perspiration must therefore be wicked away effectively. Breathability is measured in g/m²/24h: the higher the figure, the better the moisture transfer. Opt for a rating of 8,000 g/m²/24h or above.
For more information, read our article on waterproofing and breathability in clothing.
Optimal insulation for ski trousers
Thinsulate™ Insulation material is used in the lining of trousers. It is made up of very dense synthetic fibres, providing superior insulation.
PrimaLoft® technology, found on many products, delivers garments that are lightweight, breathable and warm. PrimaLoft® is a lightweight, warm, water-repellent synthetic fabric that retains all its technical properties when in contact with moisture.
The small details for choosing the right ski trousers
Ventilation zips
To regulate airflow during activity, it is advisable to choose ski trousers fitted with ventilation zips. Located on the sides of the thighs, they will keep you at the right temperature at all times.
Snow gaiter
You will find integrated snow gaiters at the bottom of your trousers. These are specially designed to prevent snow from getting into your trousers, particularly during off-piste use in powder snow.
Reinforcements
For beginners and freeriders, a few strategically placed reinforcements at the seat, knees or lower legs can make all the difference in a fall.
Safety beacons
Off-piste skiers can add a layer of safety by choosing ski trousers fitted with a RECCO reflector. Sewn into the garment, these reflectors return the signal from rescue teams’ detectors, helping them locate you more quickly if you are caught in an avalanche.
Adapting your ski trousers to your discipline
FOR ALPINE SKIING
If you spend your days on the slopes, you will need waterproof and breathable trousers. During this activity, there will be moments of cooling down, particularly on chairlifts. Warm, well-fitted trousers are therefore recommended.
FOR FREERIDE SKIING
You will need a well waterproof pair of trousers that protects you even when you spend entire days in the snow. A durable fabric and reinforced knees will also be important to withstand abrasion from the elements (roots, branches, rocks, etc.). In terms of fit, go for a fairly relaxed cut to allow a full range of movement on the slopes. For waterproofing, opt for a rating of at least 20,000 mm. For off-piste enthusiasts who want to prioritise safety, you can choose ski trousers fitted with a RECCO-type tracking beacon.
FOR SKI TOURING
Ski touring involves a great deal of effort on the way up and somewhat less on the way down. That is why your trousers must combine good waterproofing with a very high level of breathability. On the other hand, they should not be too insulating. Due to the ascent phases, your ski touring trousers must not make you run too hot. A windproof layer protects you from the wind and other elements, particularly on the descent. Additionally, external venting openings are recommended for ski touring, as they allow better ventilation.
FOR SNOWBOARDING
At the start, you will spend a fair amount of time on your backside and knees. You therefore need trousers reinforced in those areas to stay dry. And of course, your trousers must be well insulated and waterproof. For powder enthusiasts, integrated gaiters will be a welcome addition. They prevent snow from getting in during a fall, keeping you warm throughout the day.
FOR CROSS-COUNTRY SKIING
Cross-country skiing is an endurance sport with significant variations in body temperature. To avoid getting too hot or too cold while maintaining good freedom of movement, opt for tights, which will keep you warm at the start of your session and then wick away perspiration during effort.
As for sizing, beyond standard men's and women's sizes, some brands offer different leg lengths tailored to your height.
