<http://schema.org/weight>
"464 grams (16.4 oz)"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.newbalance.com/pd/new-balance-857/MX857.html?cgid=123000&prefn1=width&start=3&prefv1=4E&dwvar_MX857_color=Black>