Good thermal flask

Parents trusts Japanese brands like Tiger or the "Elephant" brand. Personally the one that really lasted from my Uni days till now (like 6 years) with easy-to-wash seamless internal design (no grooves or whatever gap) is Hydroflask. I used it to store hot water for the entire day out. It's like made for sports and outings and school, I bought it during Amazon sale 6 years ago and its still good. Just go check out Takashimaya, Isetan, OG etc. then use your phone to find the product brand and code on Amazon and check out the reviews there before purchasing.

Zojirushi. But this brand has thermal flasks coming from different sources/ countries so need to be more aware before purchasing.

Been using thermos for the longest time ever.. Heard zojirushi is good also

Thermos has never failed me so far and its been 2 years plus.

I think thermos is the best! Good insulation and no leak.

i got mine from ikea and it seems to stay hot well 😅

Ikea surprising has very gd thermal flask!

Thermos, zojirushi, tiger are good

Zojirushi thermal flask are good

Cheap and good buy from miniso