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Oct 27 · 42.22 pre-release: ladders and crowbar break-insOct 23 · First-person mods are not officially supportedOct 21 · The Indie Stone on Java mods: download responsiblySep 28 · Build 42.21 Stable: zombie duplication fixesAug 26 · Security fixes on every branchAug 17 · Servers now handle up to 254 playersJul 29 · Build 42 goes Stable

Mail Bag

Mail Bag is a container item in Project Zomboid. Wearing it changes run speed to 0.99. Build 42.21 data, November 2026.

01Item

Mail Bag at a glance

Mail Bag icon

Container Bags & storage

Wearing it changes run speed to 0.99. It holds 20 with 50% weight reduction. It weighs 0.5.

Weight0.5
Capacity20
Weight reduction50
Run speed0.99
02Item

What it is and how to use it

Capacity is how much a container holds. Weight reduction is how much lighter the contents feel while you wear or carry it, so a bag with high weight reduction lets you carry more before you are overloaded.

More: Bags and backpacks.

03Item

Item ID and variants

Use the item ID in sandbox loot settings, admin tools and mods.

Item IDGame category
Base.Bag_MailContainer
04Item

Where it spawns: the loot tables

Mail Bag is on 4 loot tables in the game files. Share is how much of a table's total weight this item takes, before your sandbox loot settings. Each container rolls its table several times, so a bigger share and more rolls both mean you see it more often.

Loot tableWhere that table is usedShareRolls
Post Office ParcelsPost Office (laundry cart, shelves); Post storage (crate, shelves)42%2
Post Office NewspapersPost Office (box); Post storage (box)2.9%4
Post Office MagazinesPost Office (box); Post storage (box)1.2%4
Post Office BooksPost Office (box); Post storage (box)0.76%4

Town by town: loot locations.

07Item

Quick answers

How much does the Mail Bag weigh in Project Zomboid?

It weighs 0.5 in Build 42.

What is the item ID for Mail Bag?

Base.Bag_Mail.

How much can the Mail Bag hold?

Capacity 20, weight reduction 50%.

Stats and item IDs from the Build 42 game data as listed on pzfans.com. Item art is from Project Zomboid.