Not taking place once folded, light and with the usual wide mouth Nalgene it is more convenient to use this bag / bottle to collect spring water and put a pellet processing DCCNa (eg Oasis ) than a traditional aluminum bottle neck is too thin. Especially to collect the water that falls from walls irregularly. So I am using mine as a pocket has water treatment before the repay my usual bag or as a complement to emergency gourd. I imagine the wide mouth is also perfect for users has filters pumps, in which case this pocket is a perfect tank to collect the water cloudy and wait for sediment are before pumping.
I do not treat this as I mistreat my pocket flasks Nalgene Tritan. After 2 years of service in my backpack plastic has not yet weakened and is often folded and it's a good surprise. I do not expect a long life but so far I'm surprised. So it's ultimately a good product that I would resume the day or mine is lost or dies. I recommend that adventurers and bushcrafters.
PS: Again, as with hard tritan gourdes, the wide mouth also allows use this empty and dry pocket as tight container.
