Coghlan'sStore N' Pour Contain Alls Reusable Container Set, Clear ,One Size, 8525

I brought these for everyday use in my handbag. I have a dairy allergy and carry dried soya milk with me. These bottles are ideal. They are light and take up very little space. I use the pourer tops for my dried soya milk as this makes it easy to judge how much I use. I recommend these bottles.

Good selection, I have been using these for sometime and they are great for the lightweight traveller, a good piece of kit

I wish it made of higher quality plastic, however, it is enough for often uses. But if you really depend on them, they may turn you down in the middle of camping. They are not 100% leak-proof, once one of the bottles I added oil in it leaks and made a mess. After that, I always store them in a ziplock (like the attached photo). Despite all of it, I like the lid which has a knob you can pour oil through it without opening the lid.

Although the caps are supposedly interchangeable between all the bottles, the quality control is lacking and using the flip-top caps from the larger bottles on the smaller bottles will cause the smaller bottles to leak from under the cap.I am still able to use and re-purpose the bottles, but I was not able to use the smaller bottles as originally intended.It appears the top lip of the smaller bottles are not as well formed as the larger bottles, since the bottle wall material is a bit thinner than on the larger bottles, Consequently, the friction/pressure seal of the cap against the top lip has a high failure rate even if you really tighten the cap down very firmly.I DO NOT RECOMMEND THIS ITEM(due to quality control issues. look elsewhere for better quality)

Perfect for car camping. Not sure if I would trust them to not be squeezed and burst inside of a heavy drybag or similar, so they may not be the best option for backpacking. They are a bit soft so they have a lot of 'give' so I could see a scenario where it leaks or the lid gives out from the pressure.