<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/MW577-V.html?cgid=40057&prefn1=itemType&dwvar_MW577-V_color=Bone&start=2&prefv1=Yoga%7CCushioning>