Eco Bottle 750 ml flip-cap
If the original 1L size is too strapping, and the 500ml size doesn't even begin to quench your thirst, here's a 750ml size, which is 24.3 cm high.
Choose from mango orange or sea green. Here's a great little film from Tupperware Malaysia about the features of the Eco bottle range, most with screw tops not flip-cap. Sadly I can't get you the strap-on version, just the bottles themselves.