Find Your Perfect
Technical Base Layer
At KOMBI, we make technical feel personal with three next-level fabrics designed to match your body, your activity, and your winter vibe.
Best selling
Choose your fabric technology
Every fabric tells a different warmth story. Which one fits yours?
RedHEAT
Microcrystal tech that thermoregulates your body heat.
MerinoMIX
Natural Merino warmth with synthetic softness.
Polartec
Recycled tech with advanced airflow and breathability.

It’s Not Just Numbers
— It’s Comfort Science.
How to choose? It all depends on your activity and the temperature outside. The higher the weight (in g/m²), the thicker and warmer the fabric.

Go lightweight for movement, midweight for versatility,
or heavyweight for deep-freeze conditions.
Lightweight
For high-intensity or warmer days
Midweight
For cool temps and moderate activity
Heavyweight
For deep cold and low-intensity adventures
Midlayers to Layer Up

Q&A
Think of it like choosing your playlist—it all depends on the vibe (and the temperature).
Lightweight – For fast-paced days or milder winter weather (we call this ACTIVE)
Midweight – The all-rounder for variable conditions (we call this PRO)
Heavyweight – For deep-freeze days and low-intensity adventures (we call this EXTREME)
Kombi’s got all three, so you can layer smart based on your pace, your plans, and the ever-changing forecast.
Every KOMBI base layer—whether RedHEAT™, MerinoMIX, or Polartec®—is designed to move, breathe, and perform with total comfort in mind.
Our fabrics are soft, stretch-friendly, and naturally kind to your skin, with built-in technologies that manage moisture, regulate temperature, and keep odours in check.
Because we believe high performance should always feel good—from first layer to last run.
It all comes down to feel and performance.
Merino wool blends like our MerinoMIX combine natural warmth and breathability with the softness and stretch of synthetic fibres — perfect for all-day comfort and temperature balance.
100% synthetic fabrics like RedHEAT™ and Polartec® focus on pure performance: they dry faster, breathe better, and stay fresh longer, even through intense activity.
Both keep you warm and comfortable — it’s just about how you like to move and feel.
MerinoMIX is where nature meets next-gen comfort. We blended mulesed-free Merino wool with our favourite 4-way stretch synthetic fibres to give you the best of both worlds.
Here’s what you get:
- Warmth and temp regulation from Merino
- Plus synthetic perks: ultra breathability, odour control, and a silky-soft feel that moves with you
It comes in two tailored options:
- MerinoMIX ACTIVE (145g/m²) – Lightweight for high-energy days
- MerinoMIX PRO (180g/m²) – Midweight for versatile layering
Because when it comes to comfort, we believe in more tech, less compromise.
RedHEAT™ is our most advanced base layer, built to balance your body temperature with visible carbon microcrystals that store and release heat as you move.
Why it stands out:
- Keeps you perfectly warm — never too hot or too cold
- Breathable, quick-drying, and soft like a second skin
- Naturally odour-resistant for lasting freshness
Available in three warmth levels:
- ACTIVE (150 g/m²) – Lightweight for high-energy days
- PRO (200 g/m²) – Midweight for everyday adventures
- EXTREME (265 g/m²) – Heavyweight for deep-freeze conditions
From dog walks to downhill runs, RedHEAT™ keeps up — and keeps you comfortable.
Polartec® is the newest addition to the KOMBI family — and it’s changing the game for performance layering.
Built with recycled, high-performance fabrics, Polartec® base layers deliver breathable comfort, moisture control, and quick-drying performance.
It's available in two techs, two weights:
- Power Dry (120 g/m²) – Lightweight and ultra-breathable for high-intensity days.
- Power Grid (170 g/m²) – Midweight warmth with grid-style insulation for cooler temps.
Go lightweight — you’ll thank yourself halfway up the hill.
When the pace picks up, you need layers that breathe and dry fast.
RedHEAT™ ACTIVE (150 g/m²), MerinoMIX ACTIVE (145 g/m²), and Polartec® Power Dry (120 g/m²) are built for movement. They’re lightweight, ultra-breathable, and quick to wick away sweat — keeping you warm without overheating.
Lightweight base layers are your best pick for skiing, touring, running, or any high-output winter adventure where performance and comfort need to move in sync.
Go heavyweight — that’s your cozy cure.
When the chill hits hard, nothing beats a heavyweight base layer.
RedHEAT™ EXTREME (265 g/m²) is our warmest, softest option, built to trap body heat and keep you comfortable even in deep-freeze temps.
If you still want flexibility for layering, try RedHEAT™ PRO (200 g/m²) for slightly lighter warmth with all-day comfort.
Heavyweight layers are your best defence against the cold — insulating, breathable, and designed to feel like a warm hug from the inside out.
Every KOMBI base layer is made with care — for you, and for the planet.
RedHEAT™ and Polartec® use durable synthetic fibres designed to last season after season.
MerinoMIX blends mulesed-free Merino wool with responsibly sourced synthetics for comfort that endures.
Polartec® fabrics are crafted from recycled plastic bottles, giving new life to existing materials.
No matter which fabric you choose, every KOMBI layer is built for long-lasting warmth, comfort, and performance — made responsibly from the first stitch to the last.
We sure do—but we like to blend the best of both worlds.
Enter MerinoMIX, our custom combo of mulesed-free Merino wool and 4-way stretch synthetic fibres. Why? Because while Merino brings natural warmth, breathability, and temperature regulation, the synthetic side cranks up the durability, softness, odour resistance, and moisture management.
The result: a next-level base layer that’s part nature, part innovation, all comfort. Available in:
- MerinoMIX ACTIVE (145g/m²) – Lightweight, perfect for active days
- MerinoMIX PRO (180g/m²) – Midweight, your cold-weather layering go-to
Because natural doesn’t have to mean old-school.
No worries—we’ve got you covered.
RedHEAT and Polartec® base layers are made from 100% synthetic fibres, so they’re hypoallergenic, ultra-soft, and naturally antimicrobial—perfect for sensitive skin or wool allergies.
If you’re curious about Merino, our MerinoMIX collection blends mulesed-free Merino wool with stretchy synthetic fibres to reduce irritation while boosting breathability and odour control.
In short: comfort, performance, and peace of mind—whichever way you layer.
Absolutely. All our fabrics are hypoallergenic, breathable, and ultra-soft, so you can layer up without irritation.
If you’re wool-sensitive, RedHEAT™ and Polartec® offer 100% synthetic comfort that’s smooth and gentle.
If you prefer a natural touch, MerinoMIX balances Merino warmth with silky stretch fibres for the perfect middle ground.







