<http://schema.org/weight>
"309 Grams (10.9 oz)"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.newbalance.com/pd/new-balance-996/WC996.html?cgid=272000&srule=By%20Price%20%28High-Low%29&start=12&dwvar_WC996_color=Blue_with_Neon%20Blue>