Helikon-Tex US LVL 1 Long Sleeve Thermal Shirt - Olive Green

A... Review confirmed by purchase

100%

08.07.2026

Review for model:

Looking for a lightweight and breathable long-sleeve shirt for summer photo trips (because of ticks and mosquitoes), this model turned out to be perfect. The material is pleasant to the touch, breathes well, and effectively wicks away moisture. The seams are well done. The product has a great price-to-quality ratio.

L... Review confirmed by purchase

100%

09.09.2026

Review for model:

Size: M

For me, this is a great T-shirt that looks excellent both in terms of material and cut, and it also feels great to wear. It seems to be well made and like it could last quite a long time, which is very nice for this price.

The shirt is very lightweight and works great as a base layer. The fabric wicks moisture efficiently, dries quickly, and the flat seams do not chafe even during longer hikes. The thumb holes and extended back hem are also a plus, which is especially useful when trekking with a backpack. However, it does not provide much warmth — it is more of a breathable, lightweight layer to wear under additional clothing. At a price of around 90 PLN, it is a very good choice for trekking and activity on cooler days.

A... Review confirmed by purchase

100%

30.04.2026

Review for model:

I have been using the thermal shirt for almost half a year. It is lightweight, pleasant to the body, and the air-permeable special fabric performs its functions very well, quickly wicking moisture away from the body.

N... Review confirmed by purchase

80%

08.04.2026

Review for model:

Definitely not thermal! This is a man made fibre base layer which is very breathable so good for warm weather. I used it as a base layer for a 6 day motorcycle trip in temps 4 to 17 degrees c and it wasn't enough. On the warmer days it was excellent, very breathable and light. The long sleeves can tuck into my under gloves. I like the fit & very comfortable material. The thumb loops are dud, unfortunately. They do cut into the hand making them sore, but I'll be warm washing and stretching the sleeves to see what gives. Overall, worth the money.

M... Review confirmed by purchase

100%

18.03.2026

Review for model:

The T-shirt is made of high-quality materials. I wear it every day to work, whether it's between 4°C and -21°C, and it always performs great. It's comfortable, loose, and doesn't restrict movement.

H... Review confirmed by purchase

100%

16.02.2026

Review for model:

Happy with the quality of this shirt I haven't used it for its intended purpose but rather just while sleeping in my sleeping bag and its been very comfortable.

H... Review confirmed by purchase

100%

16.02.2026

Review for model:

Happy with the quality of this shirt I haven't used it for its intended purpose but rather just while sleeping in my sleeping bag and its been very comfortable.

I bought it in my usual size and the sweater fit a bit snugly, but the seams under the arms were bothersome. They are made in a really strange and uncomfortable way there. And if you take a larger size, it will hang too loosely. The store accepted the return without any problems, and for that I am grateful.

D... Review confirmed by purchase

40%

16.01.2026

Review for model:

The undershirt has poorly fitted armhole cutouts and thumb holes in the sleeves. This is the first Helikon product that has disappointed me so much. The only advantage is the material. The product was returned.

Н... Review confirmed by purchase

20%

29.12.2025

Review for model:

I bought it as something to wear underneath in winter; it doesn't have any thermal insulation, it's just a synthetic sweater. Also, I want to emphasize, I ordered size M—it's sized like an S, even though I'm quite slim and not tall.

The seams under the armpits are sewn much too tightly, which significantly restricts freedom of movement. It really digs in, and this is not the case at all with the LVL2 product.

It's decent, but I feel like it was sewn the wrong way – the side seams are quite unusual. For now I'll keep it, maybe I'll get used to it, but I probably wouldn't buy it again.

I bought the thermal shirt for cycling and trekking. It does its job. Thermal clothing from Militaria made a good impression on me, so I bought a few different models. I recommend it.

A very comfortable and pleasant to the touch shirt – works great both in the field and in the city as a first layer. If other colors were available, I would definitely buy another one.