When Should You Choose an 80L Backpack for Hiking?
Do you really need an 80L hiking backpack? Find out when 80L makes sense—and when a smaller backpack may be the smarter choice.
The Short Answer
An 80L backpack is most useful when your hiking trip requires substantial equipment volume—such as bulky sleeping gear, shelter, clothing, food or other equipment—or when you’re traveling for several days without frequent resupply.
Should You Choose 80L? — Quick Decision
Result: Select all options above.
What Does 80L Actually Tell You?
80L = approximate storage volume. It does not mean you should fill every compartment, automatically need it for hiking, it will carry weight comfortably regardless of design, or it is automatically better than 60L or 70L.
The 6 Questions to Ask Before Choosing 80L
1️⃣ How long is the trip?
Longer trips can require more supplies
2️⃣ How bulky is your gear?
Cold-weather and traditional camping equipment can consume more space
3️⃣ How much food do you carry?
Longer periods without resupply increase food volume
4️⃣ What sleeping system are you using?
Bulky sleeping equipment can change capacity requirements
5️⃣ What will the weather be like?
Cold/wet conditions can increase clothing and shelter requirements
6️⃣ Can you resupply?
Frequent resupply can reduce the amount you need to carry
When an 80L Backpack Makes the Most Sense
Scenario 1 — Extended Hiking Trips
If the trip requires substantial supplies and equipment, an 80L pack can provide useful additional volume.
Scenario 2 — Bulky Camping Equipment
If you’re carrying a larger shelter, bulky sleeping system, cooking equipment, and extra clothing, 80L can provide useful space.
Scenario 3 — Cold-Weather Hiking
Cold conditions can require bulkier insulation and sleeping equipment. A larger backpack solves the space problem, not automatically the weight problem.
Scenario 4 — Limited Resupply
If you’re carrying more food and equipment between resupply points, additional capacity can become useful.
Scenario 5 — Group Equipment
If one person carries shared equipment, such as shelter or cooking equipment, additional volume may help.
When You Probably DON’T Need 80L
80L vs 60L
80L vs 70L
✅ Choose 70L when:
- Your equipment is moderately bulky
- You pack efficiently
- You have regular resupply
- You don’t need much extra space
✅ Consider 80L when:
- Your gear is bulky
- Your trip is longer
- You carry additional shared equipment
- You need extra food or clothing volume
Weight vs Capacity
Why Bigger Isn’t Always Better
How Trip Duration Changes Your Capacity Needs
How Weather Changes Your Backpack Size
☀️ Warm
Less bulky clothing
🌧 Wet
Rain protection and dry storage become important
❄️ Cold
More insulation and potentially bulkier sleeping equipment
Your Sleeping System Can Decide Everything
Trip length alone doesn’t determine backpack size. Gear volume does.
Food and Water Considerations
Resupply Changes the Equation
What an 80L Backpack Is NOT For
Choose the capacity based on your actual equipment and trip requirements.
Build Your Trip — 3D Capacity Estimator
Estimated capacity category: Select all options above.
Quick 80L Decision Table
How to Tell If Your Current Pack Is Too Small
How to Tell If Your Backpack Is Too Large
Beginner Mistakes When Choosing 80L
How to Choose an 80L Backpack If You Decide You Need One
Should I Buy an 80L Backpack?
Interactive FAQs
When should I choose an 80L hiking backpack?
When your equipment volume, food, shelter, clothing or trip conditions require more space than smaller packs comfortably provide.
Is 80L too big for a beginner?
Not necessarily, but beginners should be careful not to fill the extra space with unnecessary gear.
Is 80L good for multi-day hiking?
It can be, especially when carrying bulky equipment or supplies.
Is 80L better than 60L?
Not automatically. It depends on your equipment and trip. See comparison.
Is 80L better than 70L?
It provides more space, but the additional capacity is useful only if your equipment requires it.
Can I use an 80L backpack for camping?
Yes. Its larger capacity can be useful for shelter, sleeping equipment, cooking gear and clothing.
Does a larger backpack mean more weight?
Not by itself, but additional capacity can make overpacking easier.
Should I buy an 80L backpack for a weekend hike?
Usually, a smaller pack may be sufficient unless your equipment is particularly bulky.
How do I know if my backpack is too small?
If essential equipment cannot fit securely and efficiently even after sensible packing, you may need more capacity.
How do I know if my backpack is too large?
If you consistently have significant unused capacity or use the extra space to carry unnecessary items, a smaller pack may be more appropriate.
The 30-Second 80L Decision
Where the AdventureSupplier 80L Backpack Fits
If your decision points toward 80L, the AdventureSupplier 80L Adventure Backpack is worth comparing. For deeper guidance, see The Complete Guide to 80L Hiking Backpacks and Complete guide to choosing an 80L hiking backpack.
For more expert advice, REI’s backpack guide and REI fit adjustment are excellent. The National Park Service hiking safety page and US Forest Service offer valuable preparation tips. The American Hiking Society and Leave No Trace provide additional trail insights. Always check weather conditions and NOAA for environmental updates before heading out.
Ready to Choose Your Backpack Size?
Choose an 80L backpack when your equipment volume genuinely requires the space—not simply because a bigger backpack sounds better. Compare your actual gear, trip length, weather and resupply options before deciding.
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