<http://schema.org/weight>
"468 grams (16.5 oz)"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.newbalance.com/pd/suede-928/MW928-S.html?dwvar_MW928-S_color=Grey&cgid=102000&prefn1=size&start=17&prefv1=10.5>