Water bottle

People can drink tap water in Japan. I grew up drinking tap water, but more people seem to be buying water bottles to drink nowadays. It's convenient for bringing around, too. There are many different brands, and they may taste differently (?). This is just one brand by a Japanese company, Suntory, that also make popular beer.
Suntory Holdings Ltd. (official website): http://www.suntory.com/?ke=hd