CL convallaria 24SET Men’s Fleece-Lined Thermal Underwear Set

Fleece-Lined: CL convallaria 24SET is a men’s thermal underwear base-layer set described as a long-sleeved top and long johns. Its polyester-spandex fabric, fleece lining and stretch are intended for wearing beneath other clothes in cold conditions.

At a glance

A fleece-lined top and long johns are described as a set for cold-weather layering.
The listed fabric blend includes 10% spandex, and the maker describes it as stretchy.
The product description specifies a long-sleeved crew-neck top and flat-lock seams.

Price

£18.69Save 19%

Reference price: ~~£22.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

A top-and-bottom set provides a coordinated base layer without needing to select separate pieces.
Fleece lining and stretch fabric suit buyers seeking a warm layer with freedom of movement.
The product description says it can be worn on its own or under other clothing.

Technical specifications

9 specifications

Identity
Brand	CL convallaria
Model	24SET
Department	Men's

Fabric and design
Material	90% polyester+ 10% spandex.
Lining	Fleece lining
Top design	crew neck and long sleeve
Seam construction	4-Neddle 6-threads

Size and colour options
Listed sizes	XS/S/M/L/XL/XXL/XXXL/XXXXL
Listed colours	Black/Grey/Navy Blue Charcoal/White

What to know before buying

Listing details to confirm

The listing details are inconsistent about seam construction, describing both “4-Neddle 6-threads” and flat-lock seams. The colour entry “Navy Blue Charcoal” is also ambiguous, so confirm the selected colour and details before ordering.

Who is it for?

A good fit for

Men wanting a fleece-lined base layer for cold-weather activities or everyday layering.
Buyers who prefer a top and long johns together and want stretch in the fabric.

Less suited to

Buyers seeking a base layer with a clearly specified insulation weight or measured performance figures, which are not provided.

CL convallaria 24SET Men’s Fleece-Lined Thermal Underwear Set · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 5,014 ratings

5 stars76%76%
4 stars14%14%
3 stars6%6%
2 stars2%2%
1 star2%2%

Customer feedback highlights fit, warmth and usefulness, including reported comfort under sweatpants and use for cold-weather backpacking or overnight sleeping. These comments suggest the set may suit buyers looking for a close-wearing fleece-lined layer, though they are customer impressions rather than verified performance measurements. The supplied ratings are mostly positive, but include a smaller spread of lower ratings, so individual experiences may vary.

Positive themes

Customers report a comfortable fit and warmth.
Feedback mentions use beneath sweatpants and for cold-weather backpacking or overnight sleeping.

Frequently asked questions

What is included in the set?

The description identifies one thermal underwear set, comprising a long-sleeved top and long johns. It does not provide a separate detailed package inventory.

What is the fabric made from?

The listed material is 90% polyester+ 10% spandex.

Is it intended to be worn under other clothing?

Yes. The product description says it can be worn alone or combined with other thermal layers.

Are the seams described consistently?

No. The listing mentions both “4-Neddle 6-threads” and flat-lock seams, so the construction is not clear from the supplied details.