When you’re heading to the slopes, what you wear under your ski jacket and ski pants can make or break your day. Too cold and you’ll be miserable; too hot and you’ll overheat. The secret? A smart ski layering system that keeps you warm, dry, and comfortable.
In this guide, we’ll break down the three essential ski layers - base, mid, and outer, and show you how to choose the right pieces for your next trip.
Why Layering Matters in Skiing & Snowboarding
Layering allows you to:
• Regulate body temperature as weather changes.
• Stay dry by wicking away sweat.
• Protect from wind, snow, and rain with an outer shell.
Instead of relying on one thick jacket, layering gives you flexibility: peel off a mid-layer if you get too warm, or add extra insulation on a freezing day.
1. Base Layer (Your Ski Thermals)
The base layer, often called ski thermals or ski underlayers. Sits directly on your skin. Its job is to wick sweat away while keeping you warm.
What to Look For:
Material:
Avoid cotton, it absorbs moisture and will leave you cold. Choose planet conscious options like Arctic Eco-Sno Base Layer collection.
Fit:
Base layers should be snug but not restrictive (thermals should generally be tight, but comfortable).
Types:
• Ski thermal tops (high neck, crew or zip neck).
• Ski thermal leggings (to wear under ski pants).
2. Mid Layer (Your Insulation)
The mid layer provides warmth by trapping heat. You’ll wear this over your base layer and under your ski jacket.
Best Options:
• Fleece Jackets or Jumpers. Lightweight, breathable, and great for active skiing.
• Down or Synthetic Insulated Jackets. Perfect for colder conditions.
Pro tip: If you run hot, choose a lighter fleece. If you feel the cold easily, pack a puffy insulated jacket.
3. Outer Layer (Your Weather Protection)
The outer layer is your ski jacket and ski pants. Its main role is to shield you from snow, wind, and rain.
Features to Look For:
• Waterproof rating (10,000mm+ for skiing).
• Breathability (to let sweat escape).
• Sealed seams & snow skirts to stop snow creeping in.
Many skiers choose a shell jacket (lightweight and waterproof) and adjust warmth by changing mid-layers.
Bonus: Accessories That Complete the Layering System
Don’t forget the small details, they make a big difference.
• Thermal socks ski socks.
• Neck warmers & balaclavas.
• Ski gloves with liners.
• Thermal hats or helmet liners.
Example Layering System for a Ski Day
Mild day (sunny, above -2°C):
• Thermal Base layer, fleece mid-layer, shell jacket.
Cold day (-10°C or below):
• Thermal base layer, insulated mid-layer (down jacket), waterproof outer jacket.
Remember the weather in the mountains can change quickly so make sure you are prepared for all conditions.
FAQs on Ski Layering
Are base layers and thermals the same thing?
Yes, in skiing, thermals and base layers refer to the same first layer worn against the skin.
How many base layers do I need for a ski trip?
For a 5–7 day trip, most people bring 2–3 sets of thermals and rotate them.
What are the warmest ski base layers?
High-performance thermals are designed to keep you warm while wicking away moisture. We recommend our Ski thermal base layer collection for the best results.
Final Thoughts
A smart ski layering system is the difference between a comfortable, all-day adventure and cutting runs short because you’re freezing.
• Base layer (ski thermals): Wicks sweat, keeps you dry.
• Mid layer: Insulates and traps heat.
• Outer layer: Protects against wind, snow, and rain.
Explore Arctic Eco Sno's collection of ski thermals and build your layering system for the slopes.
Comfort. Warmth. Without Compromise.
Recycled fabrics, skin-friendly softness, mountain-ready performance. Your new favourite base layer awaits.