There are 4 different types of bags in Odin Sphere: Pouchette, Small Bag, Bag and Large Bag.
Pouchettes are small bags that are a light brown orange and look similar to a coin bag; they can store up to three items and cost 10g. They are the first bag each of the heroes can buy.
Small Bags are a Maroon brown and can store up to five items. They are usually 30g.
Bags are green and look like a school bag. They can store up to 6 items and usually cost 50g. File:Favicon.ico
Large Bags are black. They can store up to eight items and cost 75g or, in some markets, 70g. Each hero has two Large Bags at the beginning of their story.