taken from baggubag.com:
LET US EXPLAIN WHY BAGGUS ARE SO GOOD. We are working to replace our old friends, the paper & plastic bags, with something that does their job without creating needless waste or harming the environment. Using one Baggu for one year replaces 300 to 700 disposable bags.

One Baggu holds the contents of 2 to 3 plastic grocery bags. Six bags can hold a whole cart full of groceries. Baggu Bag handles are the perfect length: you can hold them in your hand, on your forearm, or over your shoulder. They are made from super strong rip-stop nylon (holds 25 lbs) so they are light (2 oz) and compactible. They fold into a flat 5 by 5 inch pouch that easily slips in a purse or pocket. That way they are always handy when you need them.