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 light pair of platemail boots	Mba'e	2	100%	2
some lightweight gauntlets	Mba'e	2	100%	2
a durable platemail	Mba'e	4	100%	8
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	55%/33%	1
a large leather sack		10	40%	1
a leather backpack		10	50%	1
a fine fur sack(ranger)	Rangers	11	55%/36%	1
a wanderer's pack	A Kaifouin caravan	13	54%/38%	1
a canvas pack	Drakhiya	16	38%/31%	1
a fashionable knights pack	Knights Guild	16	50%	1
a soft sack	Sylvanthic wolves	18	44%/28%	1
a provision sack	Knights Stronghold	20	35%	1
a large silk pack	Charky	20	33%/30%	1
an equipment rucksack	Felgand's training camp	20	33%/30%	1
a horseskin pouch (level 1-5 only)	Spiders Nest (Bayberry thicket)	20	100%	1
a rugged knapsack	Geo	22	64%/32%	1
a rugged sack	Storm Dragons	25	48%/32%	1
the belt of the giant	Underground Forest	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
a rogues sack	Greenhaven, Naquez	20	35%	2
a bag	Scythe camp	6	17%	1
a worn leather bag	Zhamarr	1	0%	1

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.