<http://schema.org/description>
"New PET preform and bottle designs are said to create a super-lightweight 0.5-liter bottle for still water that not only weighs 34% less than the average commercial bottle of this size, but also achieves 32% more topload strength than the lightest commercial bottle."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.ptonline.com/articles/blow-molding-lighter-pet-water-bottle-doesnt-squish>