glass bottle, pure water, nice...But why not plastic.

Phthalates is harmful. Phthalates in plastic causes cancer, allergic, Asthma, Rhinitis, Eczema.

*****Phthalate, or Butyl Benzyl phthalate is poisonous. Accumulation occurs. That means after 1 month, you can accumulate quite a lot of that chemical if you drink from plastic bottle.
A Sweden scientific reasearch centre documented children staying with environment with 0.72 mg of Di(2-ethylhexyl)phthalate, or DEHP with no symptoms, then attack of Asthma in the same group occured at 0.78 mg, further more even skin contact casued Eczema and skin allerggic with 0.84 mg level in the room.
It is easy to understand why children and many adults suffered with contact of plastic.
Go for safer material..such as glass container.