Quick Summary
The LAPASA Men’s 100% Merino Wool Base Layer Set is a long sleeve thermal underwear top and bottom set in Dark Heather Grey, size M. It is the Thermoflux M31 variant and is described as breathable and soft.
This base layer set is made from 100% natural and superfine merino wool from Australia, and the description also states that it is certified STANDARD 100 by OEKO-TEX.
Who It Is Best For
This set is for men looking for a merino wool thermal base layer in size M. It is also aimed at buyers comparing the M31 warm variant with the M126 extra warm version, so checking the correct thickness before ordering matters.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | LAPASA. |
| Product type | Men’s base layer set with a long sleeve top and bottom thermal underwear. |
| Variant | Thermoflux M31 warm variant, listed as 200g/m² merino wool. |
| Colour | Dark Heather Grey. |
| Size | M. |
| Material | 100% merino wool, described as superfine and natural. |
| Certification | STANDARD 100 by OEKO-TEX is stated in the description. |
| Care | Machine wash on wool programme with wool detergent at a maximum of 30 degrees, or hand wash if needed. |
Why Buyers Choose It
- 100% merino wool gives a natural wool base layer option for cold-weather wear.
- The M31 variant is identified as the warm version, which helps when choosing between the two stated thickness options.
- Long sleeve top and bottom coverage suits buyers wanting a complete thermal underwear set.
- The care guidance gives a clear washing method to check before buying.
What To Know Before You Buy
Check the selected variant carefully, as the listing also refers to an M126 extra warm version and the M31 warm version. This item is the M31 set in Dark Heather Grey and size M.
Review the washing instructions before ordering if you need a base layer that fits your preferred laundry routine. The set is described as suitable for outdoor activities including camping, hiking, cycling, skiing, snowboarding and horse riding.
Common Buyer Questions
Is this a full set?
Yes. It includes a long sleeve shirt and leggings as a thermal underwear top and bottom set.
Which thickness is this version?
This is the Thermoflux M31 warm variant, listed at 200g/m² merino wool.
How should it be washed?
Use a wool wash programme with wool detergent at a maximum of 30 degrees, or hand wash if your machine does not have a wool programme.
Is the exact colour and size shown?
Yes. The listed variation is Dark Heather Grey in size M.
Final Buying View
If you want a men’s merino wool thermal base layer set in the M31 warm version, this is the Dark Heather Grey size M option to compare carefully before ordering. Confirm the thickness, colour and size suit your needs.












