These?
http://www.ebay.com/itm/Reebok-Vero-...item2c703ad6a5
They're really turf shoes for baseball. Unless you are calling on a wet pasture, most decently groomed football field should handle it.
I've got the Vero IV Zig trainers. They're a bit heavy but held up pretty well. Over half our fields are artificial now so I use them on turf. I've got a regular pair of Adidas FB cleats for the two "crap" fields we have left.