Summary
Introduced in the Wild Appalachia update ofFallout 76, backpacks have been an extremely meaningful addition to the game. Backpacks increase your carrying capacity by a considerable amount, making it much easier to carry around everything you need, might need, probably don’t need but have just in case, and of course, things you definitely don’t need, but for some reason, you’re still carrying around.
Backpacks don’t stop there either; there are backpack mods you’re able to craft and equip, all of which change the effects of your backpack, for better or worse. There are several different backpack mods in Fallout 76, ranging from very useful to mostly irrelevant.

8High Capacity
The High Capacity backpack mod does exactly what it sounds like it does: itgives you a higher carrying capacity.At max level, that amounts to60 extra weight,which can make a tremendous difference to how much you can fit in it.
While the argument could be made that depending on what exactly you’re carrying around, you might be better suited bringing the Chemist’s backpack mod instead, the High Capacity backpack mod usually wins out because of itsjack-of-all-trades status. No matter what you’ve got tossed in your backpack, this mod is going to give you a lot of extra wiggle room.

7Chemist’s
The Chemist’s backpack mod comes in second to the High Capacity mod only because it makes a specialized difference as opposed to a broad one. The Chemist’s backpack mod does exactly the same thing that one of thebest Strength perk cards, Traveling Pharmacy, does; itreduces the carry weight of all Chem’s by 90 percent.
You’re probably carrying more Chems than you realize, but it’s important to note that thisdoes not stack with the perk card,so you should only be running one or the other.

For someone who runs around with Chem’s stashed in every pocket, this backpack modmight beat out even the High Capacity modto take the top spot. Either way, this mod is going to make at least a bit of a difference in your weight and is a great choice.
6Grocer’s
The Grocer’s backpack mod is a mod for the chefs out there,reducing the carry weight of all food and drink by 90 percent. This does not stack with any perks, though it could be well-combined with theGood With Salt perk card.
Your squad’s resident chef could prepare all the food and drink and carry it around in their backpack, dishing out meals here and there when someone is hungry. Ensuring nobody is much burdened by the weight of the feast, and everything stays fresh as long as possible.

This is another example of ahighly specialized backpack modthat won’t make much of a difference for many people, but will make a world of difference for others.
5Refrigerated
The Refrigerated backpack mod is another great one for those who happen to cook quite a lot of food and brew a lot of drinks; itensures all food and drink spoil 50 percent slower.There’s no fate worse than carefully preparing a feast for you and your friends, only to look in your backpack and find it’s spoiled. It makes you unhappy, it certainly makes your friends unhappy, and there’s an easy way to avoid this fate.
Something to note is thatthis backpack mod does not stack with the Good With Salt perk card.That said, if you were already running that perk, equipping this backpack mod would clear up some perk points for you to invest in something else.

4Scrap Rat
Available as a limited-time Summer C.A.M.P. challenge, the Scrap Rat backpack modreduces all scrap and components' weight by 90 percent.While this mod might be halfway down the list, it is by no means useless, and if you’re someone who’s always carrying around a ton of scrap, could be the most valuable mod around.
Scrap is what you get from scrapping junk, and is not technically junk.

This is especially true when scavenging around looking for parts tobuild and upgrade your CAMP; it might be worth equipping this mod, if only temporarily.The only reason it isn’t higher on the list is because there are quite a few times you aren’t going to be scrapping any junk at all and are primarily focused on a quest.
3Armor Plated
The Armor Plated backpack modincreases your damage resistance, but decreases your carry weight.Damage resistance is nowhere near as effective as damage reduction, and most of the time, the increase in damage resistance from this backpack is not going to make much difference on top of whatever armor you happen to be wearing anyways.
In a situation where you happen to bewearing a hazmat suitand so don’t really have any damage resistance to speak of, theArmor Plated backpack mod might be of some use.But usually, the benefit does not outweigh the cost of carrying capacity.

2Insulated
The Insulated backpack modincreases energy resistance, while decreasing carrying capacity.Similar to the Armor Plated backpack mod, the Insulated backpack mod is going to be ofonly marginal use.
Yourarmor is usually going to take the role of damage resistance,and the actual damage resistance that this mod gives you is barely going to reduce the damage you’re taking anyway.

Most other backpack mods are going to treat you better, and aren’t going to hurt your carry weight.
The Lead Lined backpack modincreases your radiation resistance, but reduces your carrying capacity.When entering places high in rads, this backpack mod might find some usage, but it’s going to bevery negligible.
Most of the time when entering a high-radiation area you’re going to be wearing either aset of power armoror a hazmat suit;the hazmat suit takes care of the radiation problem on its own, as does the power armor, and you can’t have a backpack equipped while wearing power armor anyways. This isnot going to be a useful backpack modfor much of anything and actively hurts your carry weight.