80L Hiking Backpack: Is It the Right Size for You? Complete Guide
SIZE GUIDE

80L Hiking Backpack: Is It the Right Size for You?

Wondering if an 80L backpack is too big or just right? Compare trip length, gear, camping, weather, weight and packing needs before choosing your backpack.

Quick Answer: Who Needs an 80L Backpack?

✅ 80L may be a good choice if you take extended trips, carry bulky gear, or need cold-weather equipment 🟡 80L may be unnecessary if you mostly day hike or pack compactly
Choose 80L because your gear requires the space—not because a larger number sounds better.

Is 80L Right for Me? — Quick Quiz

How long are your typical trips?
Do you camp overnight?
How bulky is your equipment?
What weather do you usually encounter?
Do you carry food for several days?
Do you carry shared/group equipment?

Result: Select all options above.

This tool provides a general planning recommendation; actual requirements vary by equipment and trip conditions.

What Does 80L Actually Mean?

80L means approximately 80 liters of storage volume. It does not mean 80 kg of carrying capacity, 80 days of supplies, automatically suitable for every long trip, or automatically better than a smaller pack.

LITERS = VOLUME
KG = WEIGHT
These are two different things.

Inside an 80L Backpack

🔝 QUICK ACCESS — Water • Rain Gear • Snacks • Navigation
📦 UPPER — Food • Extra Layers
👕 MAIN — Shelter • Clothing • Cooking Gear
🛏 LOWER — Sleeping System

How Much Can You Pack in an 80L Hiking Backpack?

An 80L backpack can accommodate a substantial outdoor setup. REI’s backpack sizing guide places 70L+ packs in its extended-trip category while also noting that 50–80L packs cover many multiday trips.

Tent
Sleeping bag
Sleeping pad
Clothing
Food
Cooking equipment
Water
First-aid supplies
Navigation equipment
Personal items
Weather protection
Specialty equipment

How Many Days Is an 80L Backpack Good For?

Day — Usually excessive Overnight — Usually substantial extra capacity 2–3 Days — Potentially more than necessary for compact gear 3–5 Days — Can provide comfortable additional volume 5+ Days — Increasingly useful depending on supplies
Trip duration alone does not determine backpack capacity.

When Is an 80L Backpack Actually Useful?

🏕 Bulky Camping Equipment

Larger or less compressible equipment can consume substantial volume.

❄️ Cold Weather

Extra layers and warmer sleeping equipment can require additional space. REI notes larger packs can accommodate warmer sleeping bags, extra clothing and four-season tents.

🍚 Long Food Carries

More food can increase both volume and weight.

🧳 Extended Trips

Longer trips may require additional supplies.

🎒 Group Equipment

One person may need to carry shared items.

🧰 Specialty Equipment

Certain activities require equipment that doesn’t compress easily.

80L for Hiking

An 80L pack makes sense for extended hikes, remote routes, cold-weather trips, bulky gear systems, long resupply intervals, and group equipment. An 80L backpack isn’t necessary simply because you’re hiking. For a normal day hike, an 80L backpack would generally be far more capacity than needed.

80L for Camping and Extended Trips

Tent
Sleeping system
Cooking
Food
Clothing
Water
Navigation
Safety essentials

80L and Cold-Weather Gear

☀️ Warm Weather

Compact clothing, smaller sleeping system, lighter shelter

80L → Lots of available space

❄️ Cold Weather

More layers, warmer sleeping system, larger shelter components, additional accessories

80L → More practical

This is one of the strongest reasons to explain the larger capacity.

80L vs 70L

Feature
70L
80L
Multi-day trips
🟢
🟢
Extended trips
🟢
🟢
Compact gear
🟢
🟡
Bulky gear
🟢
🟢
Cold-weather gear
🟡
🟢
Extra supplies
🟡
🟢
Risk of overpacking
Lower
Higher
Best for
Moderate volume
Higher volume

80L vs 60L

Choose 60L when: Your gear is compact and fits comfortably
Choose 80L when: Your essential equipment repeatedly exceeds what a 60L pack can comfortably accommodate

Don’t upgrade from 60L to 80L until you know what is actually causing your space problem.

How to Check If You Really Need 80L

  1. Lay out all essential equipment
  2. Remove optional items
  3. Group the equipment: shelter, sleeping, clothing, cooking, food, water, personal
  4. Pack everything into your current backpack
  5. Identify what doesn’t fit
  6. Ask: Is the problem genuinely lack of capacity—or inefficient packing?
  7. Only then consider moving to 80L

Fill the 80L Backpack

Click items to add them to your 80L pack:

Capacity Used: 0L / 80L
0L 0L 80L

This is an illustrative visualization — actual gear volumes vary.

Does Bigger Mean Better?

No. An 80L backpack gives you more volume but potentially also more temptation to pack, more empty-space movement, more overall pack size, and potentially more backpack weight. REI’s guidance similarly warns that choosing capacity should be based on the trip and load rather than simply maximizing size.

Can an 80L Backpack Be Too Big?

Mostly day hikes
Very compact gear
Minimalist packing
Regularly carrying lots of empty space
Buying it only “just in case”
Using the extra room to carry unnecessary items

Can an 80L Backpack Be Too Small?

Bulky winter gear
Large shelter
Long food carries
Group equipment
Specialty equipment
Extended trips

If these repeatedly exceed the capacity of a smaller pack, 80L may be reasonable.

80L Backpack Weight vs Capacity

80L = STORAGE VOLUME
Loaded Weight = ACTUAL WEIGHT
An 80L pack does not automatically mean you should fill it.

Backpack Fit Matters More Than Just Liters

Torso Length — A crucial measurement for backpack fit
Hip Belt — Helps transfer load to the hips
Shoulder Straps — Should sit comfortably without excessive pressure
Frame/Suspension — Important when carrying substantial loads

REI’s backpack fitting guide states that torso length—not overall height—is the key measurement when fitting a backpack.

Correct 80L Backpack Fit

🧍 Torso — Match manufacturer sizing 💪 Shoulders — No pressure points 🦵 Hip Belt — Sits on hip bones 🔝 Load Lifters — Upper pack adjustment ⬛ Chest Strap — Stabilizes shoulder straps
Click any area for more detail (demo).

How to Choose the Best 80L Hiking Backpack

Capacity — Does 80L actually match your gear?
Fit — Does the harness match your torso?
Hip Belt — Can it comfortably support the intended load?
Suspension — Does the frame provide the support you need?
Organization — Are important items easy to access?
Compression — Can the pack stabilize when partially full?
Durability — Does the material suit your intended use?
Weight — Is the backpack itself reasonably suited to your carrying needs?

How to Pack an 80L Backpack

⬇️ BOTTOM — Sleeping gear
⬇️ MIDDLE — Dense equipment
⬇️ UPPER — Clothing and items you’ll need during the day
🔝 EXTERIOR/QUICK ACCESS — Rain gear, water, snacks

Don’t Fill 80L Just Because You Have 80L

80L backpack — 50L used 80L backpack — 79L used
Unused capacity isn’t a problem. Unnecessary weight is.

80L for Beginners

Don’t start with: “What’s the biggest backpack I can buy?” Start with: “What am I actually carrying?”

Trip Gear Season Volume Fit

Best Uses for an 80L Backpack

🏔 Extended Hiking

🏕 Camping

❄️ Cold-Weather Adventures

🎒 Group Gear

🧳 Long Outdoor Trips

🧰 Bulky Equipment

80L Decision Calculator

Trip Duration:
Gear Volume:
Weather:
Camping:
Food Carry:
Group Equipment:

Recommendation: Select all options above.

This recommendation is based on general gear-volume factors. Always compare your actual equipment with the manufacturer’s pack dimensions and specifications.

Interactive FAQs

Is an 80L hiking backpack too big?

It can be if your equipment is compact or you’re taking short trips. It can be appropriate when you genuinely need the additional volume.

How many days is an 80L backpack good for?

There isn’t a universal number. 80L is commonly associated with larger multiday and extended-trip setups, but your gear and conditions matter. REI places 70L+ packs in its extended-trip category while also noting that 50–80L packs cover many multiday trips.

Is 80L enough for camping?

It can accommodate substantial camping equipment, depending on how bulky your shelter and sleeping system are.

Is 80L good for winter hiking?

The extra volume can be useful for bulky winter clothing, warmer sleeping equipment and larger shelters.

Is 80L better than 60L?

Not automatically. 80L simply provides more volume.

Is 80L good for beginners?

It can be, particularly when a beginner has bulky equipment or needs substantial capacity. But buying extra capacity without needing it can encourage overpacking.

Can I use an 80L backpack for a weekend?

Yes, but it may provide considerably more space than necessary for a compact weekend setup.

What is the biggest advantage of 80L?

Additional storage volume for bulky or high-volume equipment.

What is the biggest disadvantage?

The extra capacity can encourage unnecessary packing, and the pack itself may be larger/heavier than a smaller alternative.

Does 80L mean I can carry 80 kg?

No. Liters measure volume, not weight.

Should I choose 80L or 70L?

Compare your actual gear. If everything fits comfortably in 70L, there may be little reason to move up to 80L.

Final Decision Matrix

Your Situation
Recommendation
Day hiking
🔴 Usually too large
Overnight with compact gear
🟡 Probably more than needed
Multi-day hiking
🟢 Potentially useful
Extended trips
🟢 Strong candidate
Bulky camping equipment
🟢 Strong candidate
Cold-weather equipment
🟢 Potentially useful
Minimalist packing
🟡 Consider smaller
Large group equipment
🟢 Potentially useful
Lots of unused space
🔴 Consider smaller
60L/70L repeatedly too small
🟢 Consider 80L

Still Confused? Use This Rule

✅ Your gear fits comfortably in 60L? → Stay with 60L 🟡 Your gear needs around 70L? → Compare 70L ✅ Your essential gear regularly exceeds 70L? → 80L may make sense 🔴 Your 80L has lots of unused space? → You may be carrying more capacity than you need

Before Buying an 80L Hiking Backpack

List your essential gear
Check your tent’s packed size
Check your sleeping bag/pad volume
Consider clothing for the expected weather
Estimate food requirements
Consider water availability
Include cooking equipment
Consider shared/group equipment
Pack everything together
Determine whether 60L/70L is enough
Check torso length
Check hip-belt fit
Check the manufacturer’s load guidance
Choose 80L only if the additional space solves a real problem

Where the AdventureSupplier 80L Backpack Fits

If your gear matches the 80L profile, 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 80L Backpack?

An 80L backpack is useful when you genuinely need the extra volume for bulky equipment, longer trips, colder conditions or substantial supplies. If your gear fits comfortably in a smaller pack, bigger isn’t automatically better.

Shop 80L Backpacks