Yes, these are 100% biodegradable water bottles, which last for ages too!
Regsiter on the S Wheat website for the chance to get one of these for free. All you need to do is refer some friends using the link they provide after you sign up.
Earn 3 points and you get a Free Bamboo Cutlery Set + Toothbrush, 5 points gets you a Free S'wheat Bottle, and 15 points gets you a Limited Edition S'wheat Bottle engraved with your name.
Click over to the next page and pop your email address in the form to get started.