Need help with reusable lunch/snack bags

[MomToOne]

I am having a hard time figuring out what I want to order for bags to replace ziplocks. I'd love something with a zipper and I'd love to be able to throw it in the washing machine. Does anyone have any opinions about the stuff on reusit.com? Or anything else? What works best for you? In terms of crumbs, cold wet fruit, sandwiches, you know all the different kinds of snacks one might pack.

Also I found this on esty, what do you think?:
http://www.etsy.com/shop/LoveForEarth?ref=seller_info

[Katigre]

I just ordered some of these: http://www.etsy.com/shop/EcoGreenBags

I use metal or plastic snack containers in place of ziplocks so the only thing I need them for is sandwiches.