I have two bottles like that both from VAPUR, though with different caps.   One was new in package I got at a thrift store - the other was something I bought at Eddie Bauer.   Both of the bottles leaked at the seams - the one I got at the thrift store was a promo from computer stuff - it leaked at the top seam right from the start, the other leaked on a seam also after a little bit of use.  I fixed with glue, but based on that experience, I would not recommend one - I have a couple of Platypus bottles that I use also - neither of them have leaked yet.   I like the fold up idea, as I use them only for extra capacity when hunting, and don't have to deal with the bulk of an empty "regular" water bottle - can just fold up and put in a pocket.     YMMV