I don't sell zone products, but perhaps a zone bar like :http://shop.zonediet.com/product/de...l/208.aspx
How about some yogurt, with added blue berries, with a fiber bar: http://fiberone.com/products/bars/
and some almonds.
Whatever you take, I understand having a balance, carbs, protein, and fat, is essential with any meal, including snack.
Best luck with the Roller Derby.