Esbit Vacuum Flask 1 l - Olive Green

Great, durable, and capacious thermos. It is a bit wide, so you need to make room for it in your backpack, but it works excellently and keeps the temperature for a very long time.

I bought the thermos on October 17, 2025 at 16:49, and the delivery arrived as early as October 18 at 7:04 – amazing, congratulations. The thermos itself keeps warm for a very long time – even after 23 hours the drink was hot. I recommend both MILITARIA.PL and the ESBIT 1l thermos.

I chose the Esbit brand because I have been using their thermos for almost a decade and I know it is reliable. Now I can have both tea and coffee on hand at the same time. I’m glad they still maintain high quality, offering two cups and two different caps.

The thermos keeps temperature perfectly – even after 12 hours the drink remains hot, and after 24 hours it is still warm and you can warm up with it. It was tested under harsh conditions, such as strong wind, heavy rain, and around 10°C. My only complaint is about the coating – although it is pleasant to the touch, the paint wears off very easily. After just one fishing trip, when the thermos fell over and rolled several times, it got scratched and silver marks appeared. For heat retention I give 4 stars, I deduct one for poor paint durability.

This is the best thermos I have had so far. It keeps the temperature for a whole day, even in very harsh conditions. It also works perfectly in the summer when I use it to store ice cubes – they don’t melt even after several hours in strong sun.

Does not leak, maintains temperature for a very long time, is comfortable and lightweight. Two cups are an advantage, although one of them falls out when opening. Two stoppers are also a great option. I recommend the product and store, I have bought here again.

Esbit is as reliable as always. In summer it cools perfectly, in winter it keeps warm excellently. The rough surface prevents light reflections, which is important for discretion. Very solid construction. Simple, sturdy, and reliable. The additional cup is a big plus. The only downside is the size, but it's hard to expect a smaller dimension with this capacity – you always give something up for something else.

The thermos keeps heat very well and is solidly made. Perfect capacity, two cups are very useful. Covered with a coating which prevents it from slipping out of your hand.

Product as described, express delivery and good quality. Fully meets my requirements, looks very good. Actually keeps heat for a long time (at least 12 hours according to my tests). The additional cup in the lid is a big plus. I highly recommend buying it!

This thermos keeps temperature for a long time and is very solidly made. The perfect capacity for a trip, and the two cups are very practical. The rough coating ensures a firm grip.

The thermos is amazing. It keeps the heat for a long time. After 10 hours in the cold in a backpack, the tea was still warm. It is tight, even after a fall nothing leaks – it gets a little dented, but doesn't lose its seal.

In my opinion, this is a brilliant thermos. Tea brewed in the morning was still very warm after more than 14 hours. The thermos spent the whole day outside in a backpack, with temperatures from -5 to -2. Definitely worth recommending.

Solid, very well-made thermos for special occasions, keeps heat perfectly as described. Although it is wider than it is tall, which some may not like. Despite that – I definitely recommend it!

Excellent thermos. It keeps drinks warm well and doesn’t slip in your hand. I think it's one of the best thermoses on the market. The promotional price matches the quality – definitely worth buying without hesitation. Highly recommended.

I have been using this thermos for 5 years – at home, boiling water stays warm for a long time, and in the forest during winter, it stays warm all day without a problem. A solid, well-made device. Highly recommended.