<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&dwvar_MW577-V_color=White&prefn1=sizeRefinement&srule=By%20Customer%20Ratings&start=12&prefv1=men_shoes_11%7Cmen_shoes_4.5>