+ Robust as a 1L Cola PET + From the wide opening, it can be carried as enjoyable as drinking from a glass, also lighter filling, even tea bags fit well + Foreign bodies (insect) and level are clearly visible through the transparent material + With boiling water filled, while the material is hot, without having to it the skin burns (hot water bottle in a sleeping bag - tested) + In fact, tasteless, even when filled with tea / coffee after a brief airing
+/- Cover loss secured by plastic band, but drinking it is a bit disturbing
(-) Due to the large diameter of the bottle they may not fit into any bottle holder, Deuter in my backpack and my Maxpedition Versipack it fits well
- The level markers are useful, but only printed in the plastic embossed or raised markings would ensure durable