<http://schema.org/weight>
"385 grams (13.5 oz)"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.newbalance.com/pd/hook-and-loop-577/885166890920.html?cgid=102000&prefn1=size&prefn2=width&start=19&prefv1=7.5%7C15&prefv2=D>