Helikon US LVL 2 Olive Green Thermal Underwear - set

K... Review confirmed by purchase

100%

04.01.2026

A big advantage is the quality of workmanship. Together with the first layer, it provides good thermal comfort. It keeps warmth very well and effectively wicks away sweat. I am satisfied with the purchase.

This is the best underwear available on this site, I already have two sets. It keeps you the warmest when combined with LVL1. The size matches the one listed in the table. Even after long, intense wear, no pilling forms on it.

Too much happiness. The cut is very comfortable, it's very cozy, very warm, and it wicks sweat very quickly. The rides in the courier at 70 km/h and -5°C are not even felt! An excellent thing. I definitely recommend it!

Very comfortable set, providing comfort. Combined with level 1, perfect under a jacket for winter evenings. Quality matches the price. I am 183 cm tall, weigh 74 kg – size L is suitable, not too tight or loose.

This underwear protects very well against the cold and efficiently wicks away moisture thanks to the special structure of the material. I wear it during movement in winter, and in spring and autumn when I plan to remain still for a long time or sleep outdoors.

I am 187 cm tall, wear XL, and even low temperatures don't bother me – with this underwear you can even wish for frost. Wearing it is pure joy. The zipper doesn't bother me at all, maybe I'm just less sensitive.

The underwear fulfills its purpose perfectly. It's warm, pleasant, and moisture is effectively wicked away. So far, I haven't noticed any flaws; time will tell how durable this set will be.

The underwear set is very warm. It works well as insulation under uniform pants and as pajamas. It holds up even at -10°C. It is thicker and warmer than LVL1. Well made and does not unravel.

Helikon US LVL 2 thermal underwear is a great choice for colder days. The lightweight and quick-drying material retains warmth well and wicks moisture to the outside. Thoughtful design and flat seams make it very comfortable and prevent chafing. The extended back of the shirt additionally protects the back. This is a reliable set for those who value comfort and functionality in demanding conditions.

The set works great both during outdoor activities and for everyday use. It keeps you warm even at -8°C, and the price is reasonable, making it a good alternative to standard sets.

The underwear is very warm, comfortable and pleasant to the touch. It provides high comfort even at -10°C when worn under a uniform and jacket. The price matches the high quality and properties of the product. Definitely recommend it.

The thermal underwear is warm and comfortable. The size runs a bit larger than standard. At 187 cm tall and 93 kg, L would be suitable. The material is pleasant to the touch, the fastening protects the neck, and the zipper has extra coverage.

Compared to my previous, non-branded set, Helikon is amazing. It maintains a very good temperature and comfort of wear. I recommend it to everyone.

The underwear set is very warm, pleasant, and definitely thicker and warmer than Helikon LVL 1. Although you can wear it over LVL 1, that combination probably only makes sense in extreme cold. So far, conditions haven't allowed for full testing, but I am sure it will perform excellently on frosty nights in a tent. Well-made, smart solutions, and a reasonable price. I highly recommend it.

Opinion after about three months of use. The size matches the chart, the material is pleasant to the touch. I wear it as LVL 2. It works well in changing weather thanks to the zip collar. It provides thermal comfort and freedom of movement. After exercise, there are no unpleasant odors, and after unzipping the collar, it dries quickly. Very good value for money. I recommend it.