<http://schema.org/weight>
"187 grams (6.6 oz)"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.newbalance.com/pd/new-balance-711-heathered/WX711-H.html?dwvar_WX711-H_color=White_with_Light%20Grey_and_Dragonfly>