Containers are important for any character. They make it so you can carry much more than you normally would be able to without them. For best results, use worn containers.

Weight reduction = % by which the container reduces when full. i.e. hobbit-made backpack makes 6 bottles weigh 4, so thats a 33% reduction

Some containers have better bonuses when worn, so its organized under weight reduction like so: worn/not worn. If only one value shown then there is no difference.

Worn Listings

Name	From	Capacity	Weight Reduction	Empty Weight
a hobbit-made backpack	Hobbitat	6	33%	2
a bag		6	33%	1
a fine fur pouch(ranger)	Rangers	6	66%/50%	1
a fine fur pack(ranger)	Rangers	9	33%	1
a large leather sack		10	40%	1
a leather backpack		10	50%	1
a fine fur sack(ranger)	Rangers	11	55%	1
a wanderer's pack	Caravan	13	54%/38%	1
a canvas pack		16	38%/31%	1
a fashionable knights pack	Knights Guild	16	50%	1
a soft sack		18	44%/28%	1
a provision sack		20	35%	1
a large silk pack	Charky	20	33%/30%	1
an equipment rucksack	Felgands	20	33%/30%	1
a rugged knapsack	Geo	22	64%/32%	1
the belt of the giant		30	66%	2

Not Worn Listings

Name	From	Capacity	Weight Reduction	Empty Weight
a footlocker	Brigand	15	33%	2
a chest*	Fubs, Brigand	40	35%	5

Chest from fubs and chest from brigand seem the same

Credit

Information taken from notes gathered by GhanimX, notes found on proboards, and some stuff from cosms site.