When Should You Choose a 70L Backpack for Hiking?
Not sure whether 70L is enough, too much, or just right? Compare trip length, gear, weather and carrying needs before you buy.
A 70L Backpack May Be a Good Choice When:
Do I Need 70L? — Quick Quiz
Result: Select all options above.
70L Is About Your Gear, Not Just Trip Length
Two people can take the same three-day trip but need completely different pack capacities.
🥾 Person A
- Lightweight tent
- Compact sleeping bag
- Minimal clothing
🥾 Person B
- Bulky tent
- Cold-weather sleeping bag
- Extra clothing
- Large cooking setup
Same trip length — different volume requirements.
When 70L Makes Sense
🏕 Camping
Adds tent, sleeping bag, pad, cooking system, food
🥾 Multi-Day Hiking
More food, clothing, shelter, sleeping system, personal equipment
❄️ Cold Weather
Extra insulation, gloves, warm hat, bulkier sleeping system
🍚 Food Carry
More days without resupply = more food volume
💧 Limited Water
Carrying more water increases volume and weight
🧥 Bulky Gear
Gear volume can matter more than trip duration
Choose 70L for Cold-Weather Hiking
Choose 70L When You Carry Your Own Food
Choose 70L When Water Is Difficult to Access
If reliable water sources are far apart, carrying more water can significantly affect the load. Water is heavy, so don’t choose a larger pack simply because it can carry more water. Plan your route and water availability first.
For official guidance, review NPS camping preparation for water planning and safety.
When 70L Is Too Much
70L vs 60L — Which One?
70L vs 80L — When Should You Go Bigger?
Is 70L Too Big for a Beginner?
Not necessarily. A beginner may benefit from 70L if their trips involve camping and bulky equipment. But a beginner shouldn’t assume bigger = better. Larger capacity can make it easier to overpack.
What Kind of Hiker Are You?
70L for Different Trip Durations
The Gear Test — Better Than Guessing
- Collect everything
- Put it together as you would pack it
- Estimate the volume
- Allow some organizational space
- Compare against available backpack capacity
Don’t Choose 70L Just Because More Space Sounds Better
The smallest comfortable pack that fits the gear you genuinely need.
Weight Still Matters
Fit Matters More Than the Number 70
Weather Can Change Your Capacity Needs
☀️ Summer
Light layers, compact gear
🌧️ Rain
Weather protection, dry storage
🍂 Autumn
Additional layers, insulation
❄️ Winter
Bulky insulation, larger sleep system
Before deciding, check the National Weather Service forecast for your route.
The 70L Decision Tree
Common Mistakes When Choosing a 70L Backpack
70L or Not? — Scenario Test
Quick Buyer Guide
🟢 Choose 70L If
Need additional room for camping and multi-day gear
🟡 Think About 60L If
Equipment is compact and you want to minimize bulk
🔵 Think About 80L If
Gear consistently exceeds 70L or is unusually bulky
5-Minute Decision Test
Score: 0/5
Select all options above.
Interactive FAQs
When should I choose a 70L backpack?
Choose one when your planned gear volume is greater than a smaller pack can comfortably handle, especially for camping, multi-day trips or bulky equipment.
Is a 70L backpack good for a 3-day hike?
It can be, especially with bulky camping equipment, but a smaller pack may be enough for compact/lightweight gear.
Is 70L too big for day hiking?
Usually, yes, unless you have unusual equipment or a specific reason for the extra capacity.
Is 70L better than 60L?
Not automatically. 70L provides more room, while 60L can encourage a more compact load.
Is 70L enough for camping?
For many camping setups, yes. Actual requirements depend on shelter, sleeping system, clothing, food and weather.
Should I buy 70L or 80L?
Choose based on your actual gear volume. Don’t buy 80L simply because it offers more space.
Does a larger backpack mean more weight?
Not automatically, but more capacity can make it easier to carry unnecessary gear.
Can beginners use a 70L backpack?
Yes, particularly for camping and multi-day trips, provided the pack fits properly and isn’t unnecessarily overloaded.
So, When Should You Choose a 70L Backpack?
✅ Choose 70L When:
- 🏕 You camp
- 🥾 Multi-day hikes
- 🧥 Bulky clothing
- ❄️ Colder conditions
- 🍚 Several days of food
- 💧 Water requirements increase load
- 🎒 Smaller packs feel restrictive
🟡 Consider Smaller When:
- ☀️ Day hikes
- 🎒 Compact gear
- 🏃 Traveling light
- 🛏 No overnight equipment
🔵 Consider Larger When:
- ❄️ Exceptionally bulky gear
- 🏕 Substantial camping equipment
- 🍚 Long periods without resupply
Where the AdventureSupplier 70L Backpack Fits
If your decision points toward 70L, the AdventureSupplier 70L Adventure Backpack is worth comparing. For deeper guidance, see The Complete Guide to 70L Hiking Backpacks and Complete guide to choosing a 70L hiking backpack.
For more expert advice, REI’s backpack guide and REI fit adjustment are excellent. The Washington Trails Association backpack guide offers practical selection advice. 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.
Still Confused About 70L?
Don’t choose your backpack based on the number printed on the label. Start with your gear, trip conditions and actual carrying needs. If your equipment consistently needs more room than a smaller pack provides, a 70L backpack can offer a useful middle ground.
Shop 70L Backpacks