100% Merino Wool Leggings Women - Thermal Underwear Base Layer Pants
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Description
This merino wool base layer bottom thermal pants for women designed for all-day comfort and layering is available in lightweight 165 GSM and midweight 250 GSM fabric options, delivering soft, smooth next-to-skin comfort for extended daily wear. Each package includes a wool base layer pants plus a bonus neck warmer, adding practical value for seasonal wear.
Easy to care for, these merino wool pants for women thermal base layer use are machine washable and maintain their softness, shape, and color over time, with no shrinking, fading, or color bleeding when washed in water under 86°F (30°C), making them a reliable choice for regular wear and year-round layering
Additional Information
| Color |
Black, Cabernet, Charcoal Marle, Deep Blue, Denim, Grey Marle, Indigo Blue, Navy, Olive Green Marle, Bayberry Green |
|---|---|
| Size |
X-Small, Small, Medium, Large, X-Large, XX-Large |
| Weight |
Lightweight 165, Midweight 250 |
Care Instructions
Merino is easier to care for than most people expect — and because it naturally resists odor, you'll wash it far less than cotton or synthetics.
Washing
- Machine wash cold (30°C / 86°F) on a gentle or wool cycle
- Use a mild detergent — no bleach, no fabric softener (softener coats the fiber and reduces its natural performance)
- Wash with similar colors, inside out
Drying
- Lay flat to dry away from direct sunlight — this keeps the shape and fit
- Do not tumble dry, do not wring
Between wears
- Air it out overnight — merino refreshes itself and is usually ready to wear again
- Spot-clean small marks with cold water instead of a full wash
Storage & pilling
- Store folded, clean and fully dry
- Light pilling in high-friction areas during the first weeks is normal for natural fibers — remove it gently with a fabric shaver and it fades over time
Every MERINNOVATION piece is covered by a 1-year warranty — register yours here.
100% Merino Wool Leggings Women - Thermal Underwear Base Layer Pants
Base-layer comfort, all-day pants
Merino joggers and leggings that move with you — training, travel, or the couch.

Train in them. Fly in them. Sleep in them.
Soft enough for the couch, technical enough for a cold-morning run, presentable enough for the airport. Merino keeps its shape and keeps you at the right temperature through all three.

Built around movement
A gusseted crotch removes the pull points, the wide waistband stays put without digging in, and the natural stretch of the knit follows squats, strides, and cross-legged sitting alike.
| Merino | Cotton | Synthetic | |
|---|---|---|---|
| Temperature control | ✓Adapts to you | Poor | Traps heat |
| After 3 wears | ✓Still fresh | Needs a wash | Needs a wash |
| Feel on skin | ✓Soft & dry | Damp when wet | Clammy |
| Typical wash cycle | ✓Weekly or less | Every wear | Every wear |
Will it itch?
No. We use superfine merino fibers that bend on contact with skin instead of prickling it. If you've only worn traditional wool, the difference is immediate.
Are the leggings opaque?
Midweight 250 gsm is fully opaque and wears on its own. Lightweight 165 gsm is designed as a base layer — best under shells or shorts.
Do they bag out at the knees?
Merino has natural recovery — the knit springs back after wear. Lay-flat drying keeps the original shape for years.
How do I wash it?
Machine wash cold on a gentle cycle, lay flat to dry. No softener, no tumble dryer. Between washes, just air it overnight — merino refreshes itself. Full details in our care guide.






















