220 Pouch, $43, US shipping included
 
At 8″x 8″x 3.5″, this pouch will hold a 2-quart GI canteen or a lot of spare food or gear.
 
220 cubic inches
500D Cordura and 3/4″ webbing to minimize weight
Will hang on 2-row/4-column PALS grid connection
5 oz.