This is a 2L "Flex Water Pack" soft bottle from Montbell. I was looking for the 1L size, but when they first went on sale, the 1L bottles quickly sold out, so I reluctantly bought the 2L. Afterwards, I was able to get a 1L bottle right away, and the 2L bottle ended up unused and put away. There is no packaging, but it is unused. Please consider purchasing.