DCF ditty bags that are great for anything from food storage to electronics. 
 
We have used the full size bags for as much as four days of food in each bag. Having two full size bags can be nice for organizing your food on a trip. Breakfast and dinner in one bag and lunch/snacks in the other. 
 
The full size comes with 1/2" buckles and can be rolled down for a bit of extra water resistance. 
 
The small bags are a good replacement for plastic storage bags and will last much longer. They are great for any small items that come along on a trip. 
 
Weight:
Full size .9oz
Half size .5oz
 
Dimensions:
Half size
8x11.5" laid flat
Roughly 7x10x3" fully packed
 
Full size
16x11.5" laid flat
Roughly14x10x3" fully packed
 
Materials:
.8oz DCF
#5 ykk waterproof zipper
Fully seam taped.