Quick Summary
These Fjquamitix men’s thermal underwear long johns are fleece lined thermal leggings designed for colder weather wear. The listed size is UK 3XL Regular and the colour is Black, so the main buying check is whether that size and fit are the right choice for you.
The fabric is stated as 95% polyester and 5% spandex, with a fleece lining for added warmth. The product is described as breathable, moisture wicking and made with 4-way elastic fabric for everyday movement.
Who It Is Best For
These long johns suit buyers looking for a thermal base layer to wear indoors or outdoors in autumn and winter. They may also work as underlayers beneath suit trousers, casual trousers or sweatpants, or as cold-night sleepwear.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | Fjquamitix. |
| Product type | Men’s thermal underwear long johns, also described as thermal leggings base layer pants. |
| Size | UK 3XL Regular, so checking the selected size before ordering is important. |
| Colour | Black. |
| Fabric content | 95% polyester and 5% spandex. |
| Lining | Fleece lined for extra warmth. |
| Fabric properties | Described as 4-way elastic, breathable and moisture wicking. |
| Design details | Includes a fly hole design, triangle stitching at the crotch and flatlock seams. |
| Temperature reference | Described as continuing to lock in temperature in an environment of -5℃ to 10℃. |
| Use cases | Listed for running, skiing, camping, cycling, fitness, mountaineering, work and home wear. |
Why Buyers Choose It
- The fleece lining is described as adding warmth for colder conditions.
- The 4-way elastic fabric and wide elastic waistband are intended to support movement without slipping.
- Moisture-wicking and breathable fabric are described for dry wear throughout the day.
- The fly hole design and flatlock seams add practical detail for everyday wear.
What To Know Before You Buy
Check the UK 3XL Regular size and Black colour carefully before ordering. The fit matters here, especially if you want these long johns to work comfortably as a base layer under other clothing.
The product is described with a temperature reference of -5℃ to 10℃, so it is best treated as a cold-weather layer rather than all-season underwear. The listed uses are broad, but the best match is a thermal layer for indoor or outdoor wear in colder conditions.
Common Buyer Questions
What is the fabric made from?
It is stated as 95% polyester and 5% spandex.
Are these fleece lined?
Yes, the long johns are described as fleece lined for extra warmth.
What size is this version?
This version is listed as UK 3XL Regular.
Can they be worn under other clothes?
Yes, they are described as a base layer that can be worn under suit trousers, casual trousers or sweatpants.
Final Buying View
If you want men’s thermal long johns with a fleece lining, stretch fabric and a black UK 3XL Regular fit, this version gives you a clear cold-weather base layer option. Confirm the size and fit before ordering, then match it to your intended layering use.
