First off....if anyone plans on attending an NFL game this year, know that bags have to be clear, and only purses of a certain size are allowed in!
I went to a preseason game last night with my dad. DS stayed home. So I decided I would just take my manual pump and pump when needed. I put everything in a string backpack. Well once we started to pull into the area of the stadium, I saw the signs about the bags. So I decided that I would just stop at a restaurant or shop and use their bathroom to pump before the game and then leave my stuff in the car and then pump when I got out. I knew we wouldn't stay the whole game so I figured I would be good. So I get to a bathroom and when I go to get out my pump and supplies, I realize I am missing parts! I packed in a hurry and didn't get it all. So I ended up having to hand express which took much longer! Luckily we only stayed until halftime so when I got home I used my electric pump for more relief. Definitely going to double check myself from now on!

Re: Pumping fail and NFL game guidelines if going to game this year and EBF
Diapers can be carried in a clear bag. Each member of a family, including children, would be allowed to carry an approved clear bag and a clutch purse into the stadium. That is a quite a bit of storage capacity.