Workwear and PPE
Thermal underwear is the first layer under workwear when several layers are worn outdoors, at the loading bay or in cool halls. The sets are made of bamboo viscose by South West: Whistler for men and Whitney for women, both in black. Sizes run from XS to XXXL.
Narrow down by brand or size.
- 5 items
- 2 manufacturers
- Net prices plus VAT
Buying guide
How to choose Base Layers
What matters when choosing: properties, comparison and typical applications.
Selection criteria
| Criterion | What to look for | In this category |
|---|---|---|
| Material | The base layer sits directly on the skin, so the fabric determines how it feels. | Bamboo viscose |
| Cut | Men's and women's cuts fit differently under workwear. | Whistler for men, Whitney for women |
| Colour | Black goes with most work jackets and trousers. | Black |
| Size | Choose a close fit so the layer does not add bulk under jacket and trousers. | XS to XXXL, not every size for both cuts |
| Combination | Add a shirt or jumper on top and a high-visibility, rain or winter jacket as the outer layer. | Work socks, shirts and rainwear in the neighbouring categories |
Frequently asked questions
- What is the thermal underwear made of?
- The South West sets are made of bamboo viscose.
- Are there styles for women and men?
- Yes. The Whistler set is cut for men, the Whitney set for women, both in black.
- Which sizes are available?
- Sizes run from XS to XXXL. XS and XXXL are not available for every cut; the sizes on offer are shown on each product page.
- Is this thermal underwear ESD-safe?
- No ESD property is specified for these garments. For EPA areas, choose clothing that is explicitly marked as ESD.




