Expensive, but worth it
"I just bought a fancy Reverse osmosis countertop machine to skip bottled water and needed a sports bottle for my cycling (and office) needs to sip on. Not only do I love that this was an insulated bottle, I am blown away by the flow rate! It's insane - you can empty the bottle in 10 seconds if you want! I'm an industrial engineer and I approve of the design choices on the bottle overall. It's a premium product, but I feel like I'm getting my money's worth for the price) If you plan on using it all day long for your home, gym, and work needs as a water bottle for a PURE clean water taste, this is the best option on the market (I looked)"