STAINLESS BOTTLE N-HEATEX 750ML GY

Even on low mountain climbs in midwinter and the coldest period of winter, you can eat cup noodles at the summit. The instant coffee is also hot enough after you get back down the mountain. It's a great product with great value for money!

When you're out hiking, you can heat up the pot by adding hot water in the morning, then once you've emptied out the hot water, add some more and you can enjoy piping hot cup ramen at lunchtime. The coffee in the evening is also piping hot. I think it's good enough even without the expensive bottles made by hiking manufacturers. I also wrapped it in some emergency duct tape and removed the excess parts to make it lighter.