Reviewed by Socal Archer from so cal on Monday, September 26, 2011
Very strong bottle. The cap valve is plastic, and would have been nice to have a stainless inner cap. But lid seems sturdy. The ring on the cap is less so; it feels like it could break but has not. It is a soft rubber or silicone over plastic or metal wire. Time will tell. It does have a lifetime warranty. The neck of the bottle has a rubber over coat making it easy to grip when pouring or drinking.