<http://schema.org/weight>
"703 grams (24.8 oz)"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.newbalance.com/pd/new-balance-460/MU460.html?cgid=109000&prefn1=sizeRefinement&prefn2=PIMSubCategoryData&dwvar_MU460_color=Black_with_White&start=13&prefv1=men_shoes_11.5&prefv2=Baseball>