Colorado Rockies
Outside food is allowed in a soft-sided bag (up to 16x16x8 in). Fruits or vegetables larger than a grapefruit must be sliced; no pizza boxes larger than personal size.
Drinks in plastic bottles, paper/plastic cups, or insulated cups/thermoses up to 22 oz. No glass bottles, metal cans, or non-alcoholic beer.
No alcoholic beverages may be brought through the gates of Coors Field.
Soft-sided coolers up to 16x16x8 in (and insulated cups/coolers up to 22 oz) are allowed. Hard-sided coolers of any size are prohibited.
Only soft-sided, single-pocket bags and containers 16x16x8 in or smaller. Backpacks and other multi-pocket bags aren't allowed.
Coors Field flings open its gates to a soft-sided bag of food and even an insulated vessel of 22 ounces or fewer. And what, I ask the mountain gods, is a personal portion of spaghetti but food in want of a soft, single-pocket carriage? I rule YES: noodles ride in the 16-by-16-by-8 soft bag, the marinara keeps warm in a 22-ounce insulated cup like a tiny alpine hot spring, and not a hard cooler nor a glass jar dares cross the threshold. Bring no alcohol and slice any meatball larger than a grapefruit; otherwise the pasta summits this ballpark free and clear.
Unofficial, untangled, and legally meaningless. Trust the real rules above.