Description
Stay warm on chilly days
The Ortorex thermal underwear provides excellent thermal insulation. It‘ll trap your body heat close to the skin, keeping you warm.
Non-restrictive
The used materials are known for high elasticity. You'll move freely and comfortably without feeling restricted.


Breathable
Our thermal underwear helps to regulate body temperature by wicking away moisture. This will prevent sweat build-up and the risk of catching a cold.
Lightweight
You won’t feel bulky wearing warm clothes over this underwear.

Size guide

- TO MEASURE YOURSELF:
- 1. Stand straight with your arms hanging naturally by your sides.
- 2. Wrap the measuring tape around the fullest part of your chest.
- 3. Start the measuring tape at the highest point of the shoulder and extend it down to the waist.
- 4. Place the measuring tape at the point where the sleeve begins and extend it down to the wrist.
SIZE | LENGTH | BUST | SLEEVE | |||
---|---|---|---|---|---|---|
cm | inch | cm | inch | cm | inch | |
M | 57 | 22.4 | 72 | 28.3 | 53 | 20.9 |
L | 59 | 23.2 | 76 | 29.9 | 54 | 21.3 |
XL | 61 | 24 | 80 | 31.5 | 55 | 21.7 |
2XL | 63 | 24.8 | 84 | 33.1 | 56 | 22 |
3XL | 65 | 25.6 | 88 | 34.6 | 57 | 22.4 |

- 1. Wrap the measuring tape around your waist and the fullest part of your hips.
- 2. Start the measuring tape at the top of the pant line and extend it down to the ankle.
SIZE | LENGTH | BUST | SLEEVE | |||
---|---|---|---|---|---|---|
cm | inch | cm | inch | cm | inch | |
M | 87 | 34.3 | 60 | 23.6 | 74 | 29.1 |
L | 89 | 35 | 64 | 25.2 | 78 | 30.7 |
XL | 91 | 35.8 | 68 | 26.8 | 82 | 32.3 |
2XL | 93 | 36.6 | 72 | 28.3 | 86 | 33.9 |
3XL | 95 | 37.4 | 76 | 29.9 | 90 | 35.4 |
Jordan (verified buyer)
Good quality but wish it came in more colors.
Alex (verified buyer)
Warm and comfy but could be stretchier.
Samantha (verified buyer)
Keeps me super warm and comfortable during cold days. The material is soft, making it easy to wear under regular clothes or as pajamas. It washes well without losing its shape or thickness. Highly recommend this set!
Alex (verified buyer)
Warm and fits well, but a bit pricey.
Danielle (verified buyer)
The material is soft and stretchy, providing a snug fit without feeling restrictive. I loved the color options, which make them stylish enough to wear as loungewear. They wash well without losing shape. Highly recommend!
Jessie (verified buyer)
Super warm and comfy thermal set. Perfect for winter!
Emily (verified buyer)
The thermal set is incredibly warm and comfortable. It is perfect for chilly weather and fits perfectly under clothes without adding bulk. I am very impressed with the quality and would highly recommend it to anyone needing reliable winter wear.
Sarah (verified buyer)
Keeps me warm!
Lisa M. (verified buyer)
Warm, comfy, and perfect fit. I wear it daily!
Rebecca W. (verified buyer)
This thermal set has been a lifesaver during the chilly months! The fabric is soft against my skin, and it layers seamlessly under my clothes. I’ve noticed that I don’t need as many layers when going out, which is fantastic. Highly recommend for anyone who struggles with staying warm during winter!