Quick Summary
These Runhit men’s thermal base layer bottoms are a black, 3XL garment for wearing beneath trousers. They have a fleece-brushed interior, an open fly and a gusseted crotch with anatomical shaping.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Fabric | 88% polyester and 12% elastane, with a stated fabric weight of 230 g/m². |
| Interior | A softly brushed fleece interior is intended to help retain warmth. |
| Fabric properties | The fabric is described as breathable and moisture-wicking, intended to draw perspiration away from the skin. |
| Construction | An open fly, gusseted crotch and anatomical 3D shaping are specified. The gusset and shaping provide extra room through the crotch area. |
| Variant and quantity | Black, size 3XL; one item. |
What to Compare Before Buying
- Size: Check the seller’s size chart and compare it with your measurements; 3XL alone does not give garment measurements or indicate how the bottoms will fit.
- Layering: Consider how the 230 g/m² fleece-lined fabric will sit under the trousers you plan to wear over it.
- Use: These are base layer bottoms for wearing beneath other clothing, rather than outer trousers.
What Is Included
The listed quantity is one item of Runhit thermal bottoms. No other garment or accessory is specified.
Check the Layering Fit
Before relying on a new base layer for an outdoor outing, try it under the trousers you expect to wear with it. Check that the combined layers allow the movement you need, particularly around the waist, hips and crotch. This is a practical fit check, not a substitute for checking the size information for the exact garment.
Before You Decide
Confirm that the black 3XL variant is the one you want, check its sizing against the available chart, and consider whether its fleece-lined fabric suits your intended layers. Follow the garment’s care instructions when available.









