Whether you're braving the great outdoors or just seeking extra warmth and comfort at home, the THMO Men's Original Thermal Underwear Top is your go-to solution for a warmer life.
Crafted from high-quality micro-fleece fabric, this thermal top boasts exceptional stretch properties and comfort seams, ensuring unrestricted movement and a snug, non-chafing fit that's perfect for layering beneath your clothing. Say goodbye to discomfort and hello to warmth!
Featuring advanced moisture and odour management technology, this thermal top keeps you dry and fresh throughout the day, making it an ideal choice for active lifestyles and chilly environments.
At the heart of every THMO base layer lies our innovative super-soft thermal microfleece.
But the true secret to our warmth lies within our expert brushing process, which creates a luxurious fur-like pile that traps more warm air close to your skin, maximising thermal performance and comfort for prolonged warmth.
These thermal tops are available in Black or White and are made from 52% Polyester & 48% Cotton. They come in 4 Men’s sizes: Medium, Large, X-Large & XX-Large and are Machine Washable at 30°C.
Extra Product Details
THMO Thermal Underwear Top
Micro-Fleece Fabric
Comfort Stretch & Seams
Moisture & Odour Management
Ideal For Winter
Super Soft & Warm
Available In Black & White
52% Polyester, 48% Cotton

Adults Sizing
UK | DE | FR | US |
---|---|---|---|
3-5 | 36-38 | 36-38 | 4-6 |
3-5.5 | 36-38 | 36-38 | 4-6 |
4-5 | 37-38 | 37-38 | 5-6 |
4-6 | 37-39 | 37-39 | 5-7 |
4-7 | 37-40 | 37-40 | 5-8 |
4-8 | 37-42 | 37-42 | 5-9 |
6-8 | 39-42 | 39-42 | 7-9 |
6-8.5 | 39-42 | 39-42 | 7-9.5 |
6-9 | 39-43 | 39-43 | 7-10 |
6-11 | 39-45 | 39-45 | 7-12 |
7-10 | 40-44 | 40-44 | 8-11 |
7-11 | 40-45 | 40-45 | 8-12 |
8-10 | 42-44 | 42-44 | 9-11 |
8-11 | 42-45 | 42-45 | 9-12 |
9-11 | 43-45 | 43-45 | 10-12 |
9-12 | 43-46 | 43-46 | 10-13 |
10-13 | 44-46 | 44-46 | 11-14 |
11-13 | 45-49 | 45-49 | 12-14 |
11-14 | 45-50 | 45-50 | 12-15 |
12-14 | 46-50 | 46-50 | 13-15 |
Children's Sizing
UK | DE | FR | US |
---|---|---|---|
3-5.5 | 19-22 | 19-22 | 4-6.5 |
6-8 | 23-26 | 23-26 | 7-9 |
9-12 | 27-30 | 27-30 | 10-1 |
9-1 | 27-33 | 27-33 | 10-2 |
12-3 | 30-36 | 30-36 | 13-4 |
2-5 | 34-39 | 34-39 | 3-5 |
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Size |
M, L, XL, XXL |
---|---|
Colour |
White, Black |
Material |
Synthetic |
