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ArkXani Men’s Thermal Long Johns Bottoms, Black, Size L

£5.99 (as of 13/10/2026 18:51 BST - 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.)

ArkXani men’s thermal long johns are black, size L, full-length bottoms sold individually for layering under trousers, jeans or workwear. The garment has a 0.45 TOG rating and a 50% cotton / 50% polyester blend, with machine-washable care instructions.

SKU: B0DJCNH27V Category:

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Quick Summary

ArkXani men’s thermal long johns are full-length thermal bottoms in black, size L. They are sold as a single item rather than a complete thermal set, and the stated design is for wearing as a warm base layer under trousers, jeans or workwear in colder weather.

The bottoms are described as a fleece-lined thermal pant with a 0.45 TOG rating and a 50% cotton / 50% polyester blend. If size and colour matter, check that size L and black are the version you want before choosing an offer.

Key Details

DetailVerified information and buyer relevance
BrandArkXani – the named brand on the item.
Product typeMen’s thermal underwear long johns / bottoms for layering.
ColourBlack.
SizeL, stated as 104-109 cm / 41-43 in.
Pack statusSold individually, not as a complete thermal set.
Fabric blend50% cotton / 50% polyester.
Thermal rating0.45 TOG, a stated insulation figure for the garment.
CareMachine washable; wash before use, wash dark colours separately, turn inside out and tumble dry on low temperature.

What to Compare Before Buying

  • Size: This version is size L, so compare the stated chest range against the fit you need for a thermal base layer.
  • Colour: The item is black, so check that this matches the colour you want under your outer clothing.
  • Single item or set: This is sold as bottoms only, not as a matching top-and-bottom set.
  • Fabric blend: The 50% cotton / 50% polyester mix is part of the garment’s make-up, so check whether that composition suits your preference.
  • Thermal rating: The stated 0.45 TOG may matter if you are comparing different levels of warmth for cold-weather layering.

What Is Included

One pair of men’s thermal long johns bottoms in black, size L.

Care, Cleaning and Storage

The bottoms are machine washable. Wash before use, wash dark colours separately, turn inside out for best results and tumble dry on a low temperature.

Before You Decide

Confirm that you want size L, black and a bottoms-only thermal layer rather than a full set. The stated 0.45 TOG and 50% cotton / 50% polyester blend are the main product details to compare against your layering needs.

Brand

ArkXani

Manufacturer

ArkXani

Binding

Apparel

Product Group

Apparel

Color

Black (Long John) Bottom

Size

L

Number Of Items

1

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