Bests & Worsts Reviews from Amazon

Pros: - Convenient Size, not too large, not too small. - Liquid measurements (metric and english) molded into the plastic on the side of the bottle - Secure Lid, with the loop design, that can be attached to a strap, bag, or clip - Quicker to drink or refill and do so with one hand, without having to unscrew top like older Nalgene bottles - Durable plastics stand up to major abuse Cons: - None that I can think of at this time. Conclusion: - Great Product, Great Design, Innovative and Convenient