A comfortable essential done the Carhartt way. This thermal suit made from a cotton-poly blend that reduces chafing and provides maximum comfortability. It can be worn as a base layer in the cold months and has thumbhole sleeves for extra coverage.
Features
5.29 ounce, 60% cotton, 40% Polyester
Built to move with Rugged Flex® stretch technology
Waffle Knit traps heat
Smooth Flatlock seams and tagless label for comfort
Carhartt logo printed on chest
Concealed thumb loop
Model No. UM0130-M
Country of Origin: Imported
Rugged Flex®
Carhartt Rugged Flex® technology moves and stretches with you throughout the day so that whatever you're doing, it's easier to do.
Rugged Flex® garments must meet the Carhartt's defined standards for stretch, recovery, and durability, so when you put on a Rugged Flex® garment, you know it won't let you down. You'll find Rugged Flex® in shorts, shirts, pants, jackets, and boots because you need gear that helps you move, not gear that holds you back.
Units are expressed in inches and reflect general body dimensions. Measurements are approximate.
RECOMMENDED SIZE
WAIST
INSEAM
SMALL
34 - 36
33
MEDIUM
38 - 40
34
LARGE
42 - 46
35
XL
44 - 48
36
2XL
50 - 52
37
3XL
54 - 56
37½
4XL
58 - 60
38
How to Measure
Note: For best results measure over your undergarments. Use a cloth measuring tape.
Chest:
Measure just under your arms and across your shoulder blades, holding the tape firm and level. If your chest falls between sizes, order the next size up.
Hip/Seat:
Measure the fullest point between your natural waist and crotch.
Natural Waist:
Bend side to side and find the natural bend in your body; this is your natural waist. Note: It may not be the smallest point.
Inseam:
Measure from your crotch to the desired length on body. You may also measure pants that you currently own and like. Lay the garment flat and smooth out. Measure on the front from the crotch point along the seam to the hem for the inseam length..
Bottoms Size Chart
Units are expressed in inches and reflect general body dimensions. Measurements are approximate.
RECOMMENDED SIZE
WAIST
INSEAM
SMALL
28 - 30
31½
MEDIUM
32 - 34
32
LARGE
36 - 38
32½
XL
40 - 42
33
2XL
44 - 46
33½
3XL
48 - 50
33½
4XL
52 - 54
33½
3.5 out of 5 star rating
3.5
3.5 5.0
Rated 5 out of 5
Can't Beat the Carhartt Quality
As a base layer it is great. A layer of warmth which nowadays I need?.without being bulky and very comfortable under other layers. A fantastic buy at a great price. Had an issue during delivery. Called customer support and issue resolved instantly. Carhartt is by far the best brand in the world?.not even close. Carhartt is not just for those that labor but for everyday use. The quality is superior
September 28, 2026
Pittsburgh, PA, US
Rated 5 out of 5
Ver comfortable
QUAADY
September 28, 2026
Philadelphia, PA, US
Rated 5 out of 5
Union Suit
I had a carharrt union suit as a teen. This union suit is an upgrade. A much better design and fit. Was very happy with it
January 7, 2026
Centralia, IL, US
Rated 1 out of 5
Unfortunately my son does not care for it. I will need to return it
January 3, 2026
, , US
Rated 4 out of 5
My son liked it very much. We will be exchanging it for a larger size.
