It's hard to say any interesting about a water bottle but Elite sure have tried. Seriously though, if you're going to get a bidon, get a Fly.
Here's what Elite says:
Ultra lightweight water bottle with 550ml capacity. Available in a range of stylish colours.
- Wall thickness has been pared down to the absolute minimum whilst maintaining integrity
- By bringing new materials to bidon construction and pushing mold technology to its very limits, Elite have created the lightest ever bidon
- 100% BPA free