<http://schema.org/weight>
"363 grams (12.8 oz)"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.newbalance.com/pd/new-balance-1005/MC1005.html?cgid=109000&dwvar_MC1005_color=Black_with_Silver&prefn1=sizeRefinement&prefn2=PIMSubCategoryData&start=4&prefv1=men_shoes_7.5%7Cmen_shoes_11&prefv2=Tennis>