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 |

















Sarah M. (verified buyer)
This set kept me incredibly warm during our outdoor adventure. I never felt restricted, and the softness was a nice bonus. Highly recommend to anyone looking to stay cozy!
Linda T. (verified buyer)
Keeps me warm and comfy!
Emily R. (verified buyer)
I love how lightweight and comfortable this set is! Even after wearing it all day, it didn’t feel bulky at all. The breathability helped keep me dry. Absolutely worth it!
Emma R. (verified buyer)
These thermals have been a lifesaver for my winter hikes. The insulation keeps me toasty while walking in the cold, and they’re so stretchy, I can move easily. Absolutely love how light they are, I don’t even feel them under my clothes!
Lisa R. (verified buyer)
I’m always cold, but these thermals keep me toasty! They’re stretchy and fit like a second skin. Plus, they don’t itch at all!
Amy B. (verified buyer)
Keeps me warm and surprisingly lightweight.
John M. (verified buyer)
The warmth is incredible and they feel soft. I wore them skiing and stayed comfy all day. No sweat, just perfect insulation and durability.
Emily T. (verified buyer)
This thermal set is a lifesaver during winter walks. It’s so light and I can still layer up without feeling bulky. Plus, the breathability keeps me comfy all day.
Sarah H. (verified buyer)
Durable and comfortable! I wore these thermals under my ski gear in the snow and stayed toasty. They fit so well and don’t limit movement at all.
Anna R. (verified buyer)
Comfy and warm, great for layering!
Related products
Men’s Running Sports Shorts for Workout
925 bought in past month
€34.98Original price was: €34.98.€24.98Current price is: €24.98.High Graduated Compression Stockings
627 bought in past month
€84.98Original price was: €84.98.€39.98Current price is: €39.98.Sports Bra and Shorts Suit Women’s Gym Set
893 bought in past month
€109.98Original price was: €109.98.€54.98Current price is: €54.98.Men’s Compression T-Shirt Sport Short Sleeve
748 bought in past month
€54.98Original price was: €54.98.€34.98Current price is: €34.98.Size guide
Up to 20% OFF Your First Purchase
Decline OfferHave Questions?
Email us : info@ortorex.ie
Medical Disclaimer
Individuals' medical conditions vary, and the use of our products is not guaranteed to be 100% effective for everyone.
If you're dealing with clinical disease or chronic pain, please consult with your physician for medical advice regarding your medical condition.
We value your privacy
Privacy Overview
NextRoll, Inc. ("NextRoll") and our advertising partners use cookies and similar technologies on this site and around the web to collect and use personal data (e.g., your IP address). If you consent, the cookies, device identifiers, or other information can be stored or accessed on your device for the purposes described below. You can click "Allow All" or "Decline All" or click Settings above to customize your consent.
NextRoll and our advertising partners process personal data to:
● Store and/or access information on a device;
● Create a personalized content profile;
● Select personalised content;
● Personalized ads, ad measurement and audience insights;
● Product development.
For some of the purposes above, our advertising partners:
● Use precise geolocation data.
Some of our partners rely on their legitimate business interests to process personal data. View our advertising partners to see the purposes they believe they have a legitimate interest for and how you can object to such processing.
Your changes on this site will be applied across the internet on any digital property you visit using NextRoll's technology. If you select Decline All, you will still be able to view content on this site and you will still receive advertising, but the advertising will not be tailored for you. You may change your setting whenever you see