Taking on a thru-hike demands the right ultralight backpack to comfortably haul gear mile after endless mile.
While minimizing weight is key for extended treks, you still need adequate volume of at least 45 liters paired with a dialed-in fit and features.
In this post, we showcase the top 5 best thru-hiking backpacks for 2024, based on durability, carrying comfort, storage space, and extreme lightness.
These ultralight backpacks strike the ideal balance of cargo capacity, featherweight design, adjustable harness and belts, weather resistance, and specialized organization.
Let’s get started.
Key Specs
Weight: 1lb 4.7 ounces (589 grams)
Capacity: 50L
Material: Ultra 100; 200
Price: $$$
PROS
✅ Ultralight
✅ Customization options available
CONS
❌ Learning curve to adjustment
The Zpacks Arc Haul Ultra is an ultralight backpack designed for thru-hikes and extended journeys between resupplies. Weighing under 2 pounds, its robust construction and comfortable carry make it well-suited for hauling multi-day loads.
The Arc Haul Ultra utilizes Zpacks’ Ultra 200 fabric, which features a Dyneema composite face for extreme tear resistance and waterproof PU backing. This enhances durability while keeping weight down. The signature carbon fiber frame provides structure for heavier loads while allowing airflow along the back panel.
The adjustable shoulder straps, interchangeable hip belt, and array of add-on options allow customization for an ideal fit. Some users note a learning curve in properly tuning the Arc Haul Ultra for maximum comfort. However, once dialed in, it effectively transfers weight to the hips while keeping your back cool and dry.
The cavernous 50L capacity has ample space for 4-5 days of food and gear. Stretchy mesh pockets, side bottle pockets, and a roll top closure provide accessible storage and compression. Attachment points and removable accessory straps add versatility.
For ultralight backpackers tackling thru-hikes requiring extended time between resupply points, the Arc Haul Ultra provides a robust yet lightweight carrying solution.
Key Specs
Weight: 2lb 0.1 ounces (910 grams)
Capacity: 49L
Material: robic nylon
Price: $$
PROS
✅ Good customization options
✅ Great weight distribution
CONS
❌ None
As an affordable variant of the popular Swift X, the Swift V delivers outstanding bang for the buck. Its modular design allows easy conversion between framed and frameless configurations to suit any trip.
Upgrades like the adjustable torso length enhance customized comfort on varied body types. Well-placed storage pockets provide secure, accessible gear placement.
Durable materials and lightweight compression cords maintain a streamlined yet load-capable design. Padded straps and pockets distribute weight evenly over tiring miles.
Extensive adjustability from hipbelt to yoke allows dialing in an ideal fit. We praise its comfort carrying heavy loads at swift paces, affirming Six Moon’s reputation for optimized suspension.
At a very reasonable price point, new owners can’t go wrong with this do-it-all pack. Both budget and performance-focused travelers will love its simplicity, versatility and quality exceeding the cost.
Key Specs
Weight: 2lb 8.49 ounces (1148 grams)
Capacity: 60L
Material: 210D HMPE ripstop nylon
Price: $$
PROS
✅ Male and female versions available
✅ Good quality
CONS
❌ Relatively heavy
❌ Some usability issues
For lightweight trips, the Lightning 60 delivers efficient performance. Its roll-top closure maximizes weather protection while allowing flexible capacity. Compression systems and attachment points securely organize additional gear.
During testing, I found the simplified design encourages light, nimble carrying. Breathable materials and minimal contact points kept my back comfortable all day.
My primary gripes centered around excess strap length requiring trimming and small hip pockets limiting quick access storage. Load stability also suffered somewhat with bulkier loads over 30 pounds.
Nevertheless, for its affordable price, this pack serves travelers pursuing simple and light adventures well.
When movement and weather-readiness matter most, the Lightning 60 brings dependable attributes to the table. With a few tweaks, it could be better optimized for varied needs.
Key Specs
Weight: 1lb 15.6 ounces (896 grams)
Capacity: 55L
Material: DCH50; DCH150
Price: $$$
PROS
✅ Adaptable for every situation
✅ Comfortable adjustments
CONS
❌ Water-resistant but not waterproof
The Southwest 55 shines as a versatile ultralight pack with its adaptable roll-top design. Its ability to shrink down matches well with fluctuating resupply schedules in the backcountry.
Built from rugged DCH50 or DCH50 fabrics (depending on the color).
We had the DCH50 version, which proved durable on the trail while maintaining impressive weight savings. Adjustable compression straps and a flat bottom ensured stable, secure loads.
While simple and lightweight, it’s worth noting this model provides water resistance, not full protection. Using a dry sack inside adds an extra barrier against potential seepage in downpours.
We can praise its well-padded, conveniently positioned hipbelt pockets. However, those with thin frames found heavier loads over 40lbs caused discomfort. Lighter pack weights maximize comfort.
Overall, the Southwest 55 performs wonderfully for varied missions when resupply points allow trimmed cargo.
Key Specs
Weight: 1lb 12 ounces (793 grams)
Capacity: 55L
Material: robic nylon (100D; 210D)
Price: $
PROS
✅ Large pockets
✅ Adjustable hip belt
CONS
❌ You need a pad to stiffen the bag
Granite Gear makes an impressive stride in inclusivity with the Virga3 series. The Virga3 55 specifically stands out with adjustable features to fit a wide range of bodies comfortably into the ultralight experience.
Constructed robustly from durables nylons, this pack forgoes traditional frame elements for an innovative load-bearing design supported by a sleeping pad. While pad use is worthwhile to note, the lighter approach expands the realm of what’s possible.
Key user-focused additions like the adjustable Re-Fit hip belt and dual pockets enhance practicality. Its roll-top access, bottle sleeves, and reasonable stripped weight also earn high marks.
While pad dependence is an essential consideration, the Virga3 55 overall succeeds in meaningfully furthering access to ultralight backpacking. It’s a great budget option.
Finding the right ultralight backpack for your thru-hiking journey is super important to make sure you have a comfy and enjoyable time on the trail.
As hikers nowadays want to carry less weight without giving up on useful features, here are some easy tips to help you pick the perfect ultralight backpack:
Start with Your Gear
First, gather all your ultralight hiking gear, like your tent, sleeping bag, stove, clothes, and other must-haves. This helps you know how much space and weight your backpack needs to carry your stuff comfortably.
Think about Fit
Make sure the backpack fits you well. Look for ones with adjustable straps and belts so you can customize it to your body shape. Trying out different sizes and adjustments will help you find the most comfortable fit.
Check Comfort Features
Even though ultralight backpacks are simple, they should still be comfy to wear. Look for ones with padded straps and belts to prevent soreness on long hikes. Also, consider ones with breathable backs to keep you cool and comfy.
Think about Waterproofing
Depending on where you hike, you might need a waterproof backpack. Look for ones made from water-resistant materials or ones that come with a rain cover. This will keep your gear dry if it rains.
Set Your Budget
Decide how much you want to spend on your backpack. There are lots of affordable options out there that still work great. Just make sure you get one that’s good value for money and fits your needs.
Looking for a smaller backpack? Check out our post on 30-45L backpacks.
Choosing the best thru-hiking backpack involves considering key factors such as weight, durability, and comfort. Look for packs made from lightweight and durable materials with ample ventilation to keep you cool during long treks. Ensure the backpack has enough compartments and pockets for organizing your gear efficiently, including essentials like a tent, sleeping bag, and cooking equipment. Additionally, prioritize features like adjustable straps and padded hip belts to ensure a comfortable fit, allowing you to enjoy your outdoor adventures without discomfort.
For a thru-hiking backpack, it’s essential to consider how much stuff you’ll need to carry. Most thru-hikers find backpacks between 45 and 65 liters work well for holding all their gear without being too bulky. However, it’s crucial not to choose a backpack that’s too big, as it could tempt you to pack unnecessary items. On the flip side, a backpack that’s too small might not fit all your essentials comfortably. So, aim for a size that strikes a balance between having enough space for your gear and not being too large or heavy to carry.
Yes, a 50-liter backpack can be suitable for hiking the Pacific Crest Trail (PCT), especially considering that most PCT hikers carry packs with main volumes ranging from 40 to 65 liters. While some hikers may opt for larger packs, particularly in the Sierra where additional gear may be necessary, many find that a 50-liter pack provides adequate space for essential gear while still keeping weight manageable. It’s essential to pack thoughtfully, prioritizing lightweight and compact items to maximize space and minimize strain on the trail.
