How to dress for Extreme Cold (Lapland, Canada, Expeditions)?
Facing temperatures of -20°C to -40°C requires proper preparation. Whether for a trip to Lapland, watching the northern lights or an expedition in Canada, the secret to insulation lies in the layering system (the layering system). For your extreme-cold garments, here is the winning Cimalp combination:
- Layer 1 (Second skin): Essential for keeping skin dry. Opt for merino wool base layers with a high weight (at least 200g/m²).
- Layer 2 (Mid insulation): A thick fleece that traps warm air around the body.
- Layer 3 (Outer protection): This is where survival is decided. Choose a ultra-warm expedition down jacket, paired if needed with a windproof and waterproof hardshell jacket to block out the elements.
Down vs Synthetic Insulation: Which to choose?
In our extreme-cold range, you will find two types of insulation, each meeting a specific need:
- Down (Goose or Duck): It is the unbeatable champion of the warmth-to-weight ratio. Ideal for dry cold (Lapland-style) and static situations. Look for the "Cuin" (fill power): the higher it is, the warmer the jacket.
- Synthetic Insulation: Less compressible than down, it has the major advantage of remaining warm even when wet. The best choice if you plan on intense activities or a humid climate (Scotland, Iceland).
Protecting the extremities: The 30% rule
Did you know that 30% of body heat escapes through the head and extremities? An extreme-cold outfit is only effective if it is complete:
- Head: A chapka or fleece-lined beanie are essential.
- Hands: Opt for mittens over gloves (fingers warm each other). For those more sensitive to the cold, slip a silk glove liner underneath.
- Feet: Pair thick merino wool socks with winter boots. Do not lace your footwear too tightly: air needs to circulate to insulate.
Lower body: How to protect your legs?
Jeans are absolutely off-limits (they freeze and provide no insulation). For the lower body, we recommend a warm hiking trousers Softshell, worn over thermal tights. For static activities (dog sledding, ice fishing), the waterproof overtrousers is a smart addition to block the wind entirely.
To find out more about our travel clothing, check out our garments for desert climate and for tropical climate.