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Runhit Men’s Thermal Base Layer Bottoms, Black, 3XL

Original price was: £16.99.Current price is: £9.98. (as of 05/11/2026 23:49 GMT - DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)

Runhit men’s thermal base layer bottoms in black, size 3XL. The fabric is 88% polyester and 12% elastane at 230 g/m², with a brushed fleece interior. An open fly and a gusseted crotch with anatomical shaping are specified. Check the size chart and try the bottoms beneath your intended trousers to assess the layered fit.

SKU: B0H9YLTK5B Category:

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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.

Brand

Runhit

Manufacturer

Runhit

Binding

Apparel

Product Group

Apparel

Part Number

UK-FZMS0301757-07

Model

UK-FZMS0301757-07

Color

Black

Size

3XL

Number Of Items

1

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