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Youthful flying Men’s Base Layer Long Johns Thermal Underwear Bottoms, Black, Size 6XL

£33.83 (as of 22/10/2026 10:23 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.)

Youthful flying Men’s Base Layer Long Johns are black thermal underwear bottoms in size 6XL. Made from polyester with fleece lining, they are described as warm, stretchy and suitable for winter wear and outdoor activities. Check the Asian size chart carefully before ordering.

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Quick Summary

Youthful flying Men’s Base Layer Long Johns are thermal underwear bottoms in black, size 6XL. They are made from polyester and are described as leggings style with fleece lining, aimed at keeping you warm in cold winter conditions.

The close fit, stretchy waistband and leggings style are presented as giving a comfortable feel and freedom of movement, while the breathable, wicking fabric is described as helping to keep you dry during activity.

Who It Is Best For

These thermal bottoms are for buyers looking for a black men’s base layer in size 6XL for cold-weather wear. They may suit everyday winter use and outdoor activities such as skiing, snowboarding, running, camping, cycling and hiking.

Key Details

DetailVerified information and buyer relevance
BrandYouthful flying.
Product typeMen’s base layer long johns / thermal underwear bottoms in leggings style.
ColourBlack.
Size6XL. Check the selected size carefully before ordering.
MaterialPolyester.
Fleece liningDescribed as double-sided ultra thin fleece lined for added warmth in cold weather.
Fit featuresElastic waistband and stretchy construction are described for a close, comfortable fit.
UsePresented for winter wear, exercise and outdoor activities.
Size guidanceAsian sizing is stated, with advice to compare the size chart carefully and consider choosing one size larger.

Why Buyers Choose It

  • Polyester fabric is described as breathable and wicking, which supports use during active wear.
  • Fleece lining is presented as helping to keep the wearer warm in cold weather.
  • The leggings style and stretchy waistband are described as supporting movement and a closer fit.

What To Know Before You Buy

Check the size carefully before ordering, as the listing states this is Asian sizing and that it differs from general UK and European size charts. The product is black and size 6XL, so confirm that both the colour and size match what you need.

Pros: The polyester, fleece-lined construction is described as warm and suitable for cold-weather layering.

Cons: The sizing advice warns that the fit may differ from standard UK and European expectations.

Common Buyer Questions

Are these thermal bottoms for winter use?
Yes. They are described as warm winter long johns for cold weather.

What size is this listing for?
It is for size 6XL, and the listing advises checking the size chart carefully before ordering.

Can they be worn for exercise?
Yes. They are described as suitable for activities such as running, cycling, hiking and camping.

What material are they made from?
They are made from polyester.

Final Buying View

If you want black men’s thermal long johns in size 6XL, this base layer is set out for cold-weather wear and active use. Check the sizing note carefully and compare the size chart before choosing.

Brand

Youthful flying

Manufacturer

Youthful flying

Binding

Kitchen & Home

Product Group

Home

EAN

8360047013435

Part Number

Youthful flying

Color

Black

Size

6XL

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