There is a new BPA-free bottle coming out later this summer that has a very interesting design called the KOR ONE from KOR Water. As you can see it has a very sleek design that is almost "imac-esque".

A healthy and sustainable lifestyle should be celebrated. Water was meant to be seen. Why then do almost all reusable bottles make hydration such a humbling experience? The KOR ONE suffers no compromises. Made from health-safe materials and designed with intuitive, surprising features, the KOR ONE takes sustainable hydration to another level.Another company with a clean uncompromising design.
via- The Goat