Quick Summary
The Runhit Boys Thermal Underwear Set is a green fleece-lined base layer set for kids. It includes a long-sleeve crew neck top and full-length thermal bottoms, with a soft brushed inner layer and a close athletic fit for layering under clothing.
The fabric is stated as 88% polyester and 12% elastane. The set is also described as breathable, quick drying, tag-free and stretchy, with an elastic waistband on the bottoms.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | Runhit. Useful for identifying the exact set. |
| Product type | Boys thermal underwear set / kids base layer. This is a 2-piece set for layering. |
| Colour | Green. Check the colour if you want a specific look for school or outdoor wear. |
| Fabric | 88% polyester and 12% elastane. This affects feel, stretch and how the garment layers. |
| Included items | Long-sleeve crew neck top and full-length thermal bottoms. |
| Fit | Close athletic fit with 4-way stretch and slim profile. |
| Waistband | Elastic waistband with woven lettering. |
| Design notes | Fleece lined, breathable, quick drying and tag-free. |
What to Compare Before Buying
- Fit: This set is described as a close athletic fit, so compare the chosen size with the intended layering space under clothing.
- Layering use: It is intended as a base layer, so check whether you want a slim underlayer rather than a looser thermal set.
- Included pieces: The set contains a top and bottoms, which matters if you are looking for a single garment or a complete underlayer outfit.
- Fabric blend: The stated 88% polyester and 12% elastane blend gives a clear fabric check for feel and stretch preference.
- Colour: Green is the stated colour, so confirm that this is the version you want before choosing an offer.
Before You Decide
Check the size, green colour and 2-piece configuration before choosing an offer. This set is designed as a fleece-lined kids base layer, so it suits buyers who want a top and full-length bottoms for layering rather than a single thermal item.
Follow the care instructions for the garment and make sure the close fit is the style you want for wear under clothing.





