When the temperature drops and the doona feels just too good to leave, the right thermal underwear can make all the difference. Whether you’re snoozing, heading out for a winter hike, or squeezing in early morning yoga, women’s thermal layers are your go-to for warmth and style.

And let’s be honest—nobody wants to feel like a marshmallow in bulky base layers. That’s why The Foundation’s Baseline Collection is redefining the thermal clothing range with sleek, comfortable, and innovative fabric technology.

Why Thermal Underwear Is a Cold-Season Essential

Not all thermals for women are created equal. Great winter base layers should offer:

• Lightweight warmth that traps body heat without bulk
• Soft, breathable material with a cotton-like feel
• Smart thermal fabric that adapts to outdoor activities or lounging
• Layerability for both hikes and casual winter outings

The Foundation’s Baseline thermals offer the perfect blend of comfort, stretch, and style. Whether you’re heading off for a full day of winter sports or just grabbing a winter morning coffee, these pieces keep up.

Explore The Baseline: Thermals You’ll Actually Want to Wear

Designed to elevate everyday winter dressing, the Baseline collection includes:

1. Modal Cashmere Long-Sleeve Tops

Available in Black, Corda (nude / beige / natural), Navy, and Ivory, these long-sleeve tops deliver the sleek silhouette of luxe winter styles. Perfect as a thermal top under layers or worn solo with confidence.

2. Modal Cashmere Tank Tops

Lightweight and breathable—ideal for layering under fleece lined jumpers, zip fleece hoodies, or pairing with thermal leggings and thermal socks.

3. Recycled and Sustainable Features

We use premium materials with recycled content and thermal weight suitable for layering. These aren’t your typical polypro thermals or mass-market thermal pants—they’re tailored, thoughtful, and timeless.

Why You’ll Love Wearing Them

Whether you’re on a winter hike, planning a camping trip, or tackling a winter workout, these thermals are your layering best friend. They work as:

• Your base for outdoor workouts
• A warm hug during yoga sessions or coffee runs
• The foundation of your winter activewear wardrobe
• Perfect pieces for pairing with mid-calf socks and your Down Vest

They also pair beautifully under the Andulo 2-layer Rain Jacket or Epiq Hooded Down Jacket in tones like Midnight Navy and Dark Haze/Light Haze.

Fabric, Fit & Function

• Fabric Content: Modal and cashmere
• Finish: Brushed thermal with matte finish
• Care: Machine wash safe
• Feel: Inspired by Australian Merino wool—but lighter, itch-free

Kind of like a cross between your comfiest pullover and your sleekest base layer. Think: if Primaloft Pullover had a luxe sister.

Style Your Thermals: Versatility in Every Stitch

From morning yoga sessions to weekend camping, these thermals do more than just layer. They're your:

• Base layer for a winter workout
• Thermal activewear for your outdoor clothing days
• Everyday layering top for your casual winter outings
• Underlayer beneath a Rain Jacket

Final Thoughts: Embrace the Cold in Style

There’s something bold about feeling warm and looking put-together when the chill sets in. The Baseline collection is your answer to winter dressing that works just as hard as you do.

So whether you’re heading into the office, tackling a mountain trail, or joining the Anaconda Adventure Club, The Foundation has you covered with a complete collection of women's thermals.

Ready to gear up?

Shop The Baseline Collection now – with FREE SHIPPING Australia-wide on orders over $150.

FAQs

1. Can I wear these thermals for outdoor activities like hiking or camping?
   Absolutely. They're ideal for active winter lifestyles—think outdoor clothing that moves with you.
2. Are they fleece lined or brushed on the inside?
   The modal / cashmere thermal tops feature a brushed thermal finish that’s soft, breathable and non-bulky.
3. What makes them different from other thermals like polypro or Merino wool thermals?
   Our blend mimics the softness of Merino wool with none of the itch, plus added stretch and moisture control.
4. Do you offer a variety of styles and colours?
   Yes—available in a range of colours including new seasonal shades.
5. Is shipping really free?
   Yep. FREE SHIPPING across Australia for orders $150 and over.