
Best selling Functional undershirts
Here's a ranking of the best products in this category. To give you a quick overview, we've also added some key information about the products.
1. iXS Shirt Melange
Functional T-shirt in casual look made of microfibre material
- Seamless circular knitting technology for highest wearing comfort
- Particularly breathable
- Excellent moisture transport
- Extremely light
- Highly elastic
- Temperature regulating
Material: 72% polyamide, 28% polyester.

2. Sixs Function shirt TS1
The SIXS Carbon Underwear® short sleeve round neck T-shirt is a multi-sport product suitable for all conditions. Unlike the sleeveless model, the sleeves wrap the upper arm (armpit), which is exposed to heavy perspiration, and keep the skin dry.
The lightest and most breathable polypropylene fiber available on the market, combined with a real carbon yarn with heat transmission and antistatic properties that protect the body from electrical charge due to the rubbing of different synthetic materials (typical characteristic of sportswear).
Technical details:
- Seamless technology
- Antistatic system
Composition:
77% polypropylene, 15% polyamide, 5% spandex, 3% carbon fiber.
Sizes: XS-2XL.

3. Odlo Roy 1/2 Zip Longsleeve
The Odlo Women's Roy 1/2 Zip Longsleeve is the perfect companion for your mountain sports activities.

4. Devold Women's Kvitegga Shirt
Women's Kvitegga Shirt.

5. Aclima LightWool
The Lightwool T-shirt is part of the Lightwool series, which represents the Aclima range of lightweight and soft garments in the finest wool quality. The series contains garments that are probably among the softest you've ever tried. The shirt is suitable for everyday wear as well as for hiking and sports activities.Aclima LightWoolAclima Lightwool is Aclima's prdouct line made from the best merino wool. For all you wool experts, this range is made from 17.5 micron yarns and weighs just 140g/m². This means that Lightwool is probably the lightest and softest wool garment you will ever use. Wool is perfect in cold weather, even if your clothes are wet. But did you know that wool is also cooling on warm days? It insulates well against heat from outside, providing a cooling effect.Merino woolMerino wool is a natural product with unique properties. Thanks to fine, waxy and long fibres, it feels soft on the skin and forms an insulating layer of air that warms up when it's cold and breathes when it's hot. Merino wool effectively removes sweat and moisture from the skin and insulates even when wet, keeping you dry and comfortable. It's naturally antibacterial, inhibits bad odors, and all you usually need to do is desalinate your garments between uses. - Size information: Size runs normal - Fit: Regular fit - Type: Short-sleeved Material - Contains non-textile parts of animal origin - Material type: Merino wool - Seams: Flatlock/flat seams - Material: 100% wool Features - Thermal function: No - Special features: Antibacterial - Zip: Without - Collar shape: Round neck - Compression: No.

6. Woolpower 200 Crewneck Unisex
Long-sleeved unisex shirt made of very fine merino wool with round neckline. The towelling fabric is circular knitted without longitudinal seams and has excellent insulation properties and provides excellent warmth even when wet and in extremely cold temperatures.Woolpower 200This thin functional underwear is designed to be worn directly on the skin - as a moisture-transporting bottom layer. This is where Woolpower products really come into their own, because the material maintains the body's heat balance and at the same time ensures that sweat is wicked away. Depending on the activity, this thermal underwear provides optimum protection against the cold at temperatures between +10 °C and -20 °C. Ullfrotté OriginalUllfrotté Original consists of 80% air. It is a knitted terry towelling fabric, one side is knitted smooth and the other side consists of terry loops. The airy terry loops in combination with the crimped structure of the wool form a tricot knit that binds a lot of air, resulting in the very good insulation properties. The thicker the layer of air on the body, the less body heat can escape. - Details: - 200 g/m² Ullfrotté Original - Completely without longitudinal seams - Longer cut back - Elastic knitted cuffs - Type: long-sleeved - Material specifications: 60 % wool, 25 % polyester, 13 % polyamide, 2 % elastane - Size information: Size is smaller - Fit: normal cut Material - Material type: merino wool Features: antibacterial - Zipper: without - Collar shape: round neck - Compression: no - Thermo function: yes Care instructions - Washing: 60°C normal wash cycle

7. Odlo Fundamentals Performance Warm
With the well-equipped Odlos Winter Specials Performance Evolution Warm baselayer set, you will feel so comfortable all day long that you can set yourself new performance goals. The versatile functional underwear is warm and particularly efficient, as the body-zone-specific functional material ensures effective moisture management and optimum ventilation exactly where the body needs it most. ZeroScent technology integrated into the fibres also prevents the development of unpleasant odours. The seamless finish offers unrestricted freedom of movement and avoids friction against the skin, so you feel comfortable all day long. If you want to train unhindered and comfortably warm, then the Winter Specials Performance Evolution Warm baselayer set is just the right choice.WarmThe roughened inside, good moisture transport, short drying time and very elastic properties make this fabric stand out.Zeroscent ZeroScent maximises your fun by minimising body odour. The anti-odour technology works on a 100% natural basis and does not allow odours to penetrate the fibres. The only thing you don't do is smell unpleasant.Fair WearOdlo is a leading member of the Fair Wear Foundation (FWF), which is committed to improving working conditions in the textile industry worldwide. The FWF checks whether producers adhere to its code of conduct and make appropriate improvements.

8. Odlo Active Dry
The lightweight, versatile Active F-Dry Light Eco Tank by Odlo will help you perform at your best this season, no matter what your sport. Thanks to Odlo's innovative F-Dry technology, the top dries in no time, whether you wear it solo or as a baselayer under other layers. The environmentally friendly material made from recycled polyester is pleasantly soft on the skin and is so elastic that you have optimal freedom of movement during every activity. Unpleasant odours don't stand a chance thanks to Odlo's sustainable ZeroScent technology, because odour-causing bacteria can't even penetrate the material. With the Active F-Dry Light Eco sports top you will always feel comfortable in your skin.

9. Odlo Men's ACTIVE F-DRY LIGHT ECO Tank Top
With the lightweight, versatile ACTIVE F-DRY LIGHT ECO Tanktop by ODLO you can achieve new best performances in the coming season, no matter what sport your heart beats for. Thanks to ODLO's innovative F-DRY technology, the top dries in no time, whether you wear it solo or as a baselayer under other layers. The environmentally friendly material made from recycled polyester is pleasantly soft on the skin and is so elastic that you have optimal freedom of movement during any activity. Unpleasant odors don't stand a chance thanks to ODLO's sustainable ZeroScent technology, because odor-causing bacteria can't even penetrate the material. With the ACTIVE F-DRY LIGHT ECO sports top, you'll always feel completely comfortable in your skin.

10. Odlo Fli Half Zip Longsleeve
Stretch fleece longsleeve with mesh structure for good climate control when skiing and hiking.
