Quick Summary
The Heatwave Thermalwear 2 pack women’s thermal pants are long johns-style base layer bottoms in Marl Grey, sized UK 18-20. They are made for cold-weather layering and are intended to be worn under other clothing.
The pack contains 2 pairs. The stated fabric mix for Marl Grey is 88% cotton and 12% polyester, and the design includes an elasticated waistband and stretchable fit.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | Heatwave Thermalwear, so the product can be matched to the correct range. |
| Product type | Women’s thermal pants / long johns base layer bottoms. |
| Pack quantity | 2 pack, which matters if you need a spare pair or want a matched set. |
| Colour | Marl Grey. |
| Size | UK 18-20. |
| Fabric for Marl Grey | 88% cotton, 12% polyester. |
| Waistband | Elasticated waistband for easier wearing under other clothing. |
| Fit feature | Stretchable design for layering and movement. |
What to Compare Before Buying
- Size: This pair is UK 18-20. Check the waist and hip fit you need before choosing.
- Pack quantity: The set contains 2 pairs, so compare this with how many you want to buy at once.
- Fabric mix: Marl Grey uses 88% cotton and 12% polyester. If fabric feel matters, compare the stated mix for the colour you want.
- Layering fit: The elasticated waistband and stretchable design are useful when worn under other clothes, so check that this style suits the garments you plan to wear over it.
Before You Decide
Confirm the UK 18-20 size and Marl Grey colour before choosing an offer. Also check that you want a 2 pair pack and that the fabric mix for this colour suits your preference. If you need a different size, the range includes other UK options in the same product line.





