Ultralight Backpacks
Always pushing the limits of what's possible, our award winning line up of premium ultralight backpacks are designed for long-distance hikers, and adventurers who continually redefine boundaries.
DESIGNED BY THRU-HIKERS
Founded by a Triple-Crowner, our experience as thru-hikers allows us to design ultralight gear that can withstand the demands of long distance hiking without weighing you down.
REDEFINING BOUNDARIES
Designed for serious adventurers, Zpacks backpacks are manufactured using Ultra™ fabric. Ultra™ features woven UHMWPE fiber which is the lightest, strongest, most abrasion resistant ultralight backpack material in the world.
MADE IN THE USA
Our industry leading, award-winning backpacks are made in the United States allowing for greater quality control, local job creation, and a reduction in our carbon emissions.
TAKE OUR BACKPACK RECOMMENDATION QUIZ
Arc Haul Ultra 40L Backpack
$399.00Weight 20.0 oz (566 g)I’m on the Appalachain Trail right now for the last 30 days and am 100% happy so far. Awesome pack. Probably best on trail.
Long days between resupplies requires a pack designed with ample space and durability. Made from Ultra 100X material, the ultralight Arc Haul Ultra backpack is innovatively designed to be a true workhorse from the Sierras to the Shenandoah.
Comfortably transfer your pack’s weight to your hips with our custom Curved Carbon Fiber frame system. The frame also creates a gap between your back and the pack allowing for air flow that helps keeps you cool.
Featuring adjustable shoulder straps, an interchangeable belt, and a variety of optional modular add-ons, the Arc Haul Ultra will allow you to tackle those long days on the trail with a durable ultralight backpack designed to fit you.
Arc Haul Ultra 40L Backpack
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Features
Curved Carbon Fiber Air Stays | Adjustable Torso
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Material
Ultra 100X
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Weight
20.0 oz / 566.0 g
Arc Haul Ultra 50L Backpack
$399.00Weight 20.6 oz (584 g)I’m on the Appalachian Trail right now for the last 30 days and am 100% happy so far. Awesome pack. Probably best on trail.
Long days between resupplies requires a pack designed with ample space and durability. Made from Ultra 100X material, the ultralight Arc Haul Ultra backpack is innovatively designed to be a true workhorse from the Sierras to the Shenandoah.
Comfortably transfer your pack’s weight to your hips with our custom Curved Carbon Fiber frame system. The frame also creates a gap between your back and the pack allowing for air flow that helps keeps you cool.
Featuring adjustable shoulder straps, an interchangeable belt, and a variety of optional modular add-ons, the Arc Haul Ultra will allow you to tackle those long days on the trail with a durable ultralight backpack designed to fit you.
Arc Haul Ultra 50L Backpack
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Features
Curved Carbon Fiber Air Stays | Adjustable Torso
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Material
Ultra 100X
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Weight
20.6 oz / 584.0 g
Arc Haul Ultra 60L Backpack
$399.00Weight 20.9 oz (592 g)I’m on the Appalachain Trail right now for the last 30 days and am 100% happy so far. Awesome pack. Probably best on trail.
Long days between resupplies requires a pack designed with ample space and durability. Made from Ultra 100X material, the ultralight Arc Haul Ultra backpack is innovatively designed to be a true workhorse from the Sierras to the Shenandoah.
Comfortably transfer your pack’s weight to your hips with our custom Curved Carbon Fiber frame system. The frame also creates a gap between your back and the pack allowing for air flow that helps keeps you cool.
Featuring adjustable shoulder straps, an interchangeable belt, and a variety of optional modular add-ons, the Arc Haul Ultra will allow you to tackle those long days on the trail with a durable ultralight backpack designed to fit you.
Arc Haul Ultra 60L Backpack
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Features
Curved Carbon Fiber Air Stays | Adjustable Torso
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Material
Ultra 100X
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Weight
20.9 oz / 592.0 g
Women's Arc Haul Ultra 60L Backpack
$399.00Weight 20.3 oz (575 g)The Women's Arc Haul Ultra is sized for women and teenagers with a smaller build. It has shorter, slimmer shoulder straps to fit narrower shoulders. The short frame height and adjustable torso range will fit torso heights around 16-19" (40 to 48 cm). The torso height can be adjusted upwards as a young adult grows.
Aside from the women-specific shoulder straps and default short torso height, this pack has all the same features as our standard Arc Haul Ultra backpacks. Our custom Curved Carbon Fiber frame system creates a gap between your back and the pack for airflow. An interchangeable padded belt hugs your hips for excellent weight transfer. Our waterproof, durable Ultra material makes this pack a true workhorse from the Sierras to the Shenandoah.Featuring a variety of optional modular add-ons, the Women's Arc Haul Ultra will allow you to tackle those long days on the trail with a durable ultralight backpack designed to fit you.
Women's Arc Haul Ultra 60L Backpack
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Features
Women's Shoulder Straps | Air Stays | Short Adjustable Torso
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Material
Ultra 100X
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Weight
20.3 oz / 575.0 g
Arc Haul UltraEPX 60L Backpack
$399.00Weight 22.5 oz (639 g)Long days between resupplies require a pack designed with ample space and durability. Made with Ultra 100X and EPX 200 material to add a splash of color, the ultralight Arc Haul UltraEPX backpack is innovatively designed to be a true workhorse from the Sierras to the Shenandoah.
Comfortably transfer your pack’s weight to your hips with our custom Curved Carbon Fiber frame system. The frame also creates a gap between your back and the pack allowing for air flow that helps keep you cool.
Featuring adjustable shoulder straps, an interchangeable belt, and a variety of optional modular add-ons, the Arc Haul UltraEPX will allow you to tackle those long days on the trail with a durable ultralight backpack designed to fit you.
Arc Haul UltraEPX 60L Backpack
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Features
Curved Carbon Fiber Air Stays | Adjustable Torso
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Material
Ultra 100X & EPX 200
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Weight
22.5 oz / 639.0 g
Women's Arc Haul UltraEPX 60L Backpack
$399.00Weight 21.9 oz (622 g)The Women's Arc Haul UltraEPX is sized for women and teenagers with a smaller build. It has shorter, slimmer shoulder straps to fit narrower shoulders. The short frame height and adjustable torso range will fit torso heights around 16-19" (40 to 48 cm). The torso height can be adjusted upwards as a young adult grows.
Aside from the women-specific shoulder straps and default short torso height, this pack has all the same features as our standard Arc Haul UltraEPX backpack. Our custom Curved Carbon Fiber frame system creates a gap between your back and the pack for airflow. An interchangeable padded belt hugs your hips for excellent weight transfer.Made with Ultra 100X and EPX 200 material to add a splash of color, the ultralight Arc Haul UltraEPX backpack is innovatively designed to be a true workhorse from the Sierras to the Shenandoah.
Featuring a variety of optional modular add-ons, the Women's Arc Haul Ultra will allow you to tackle those long days on the trail with a durable ultralight backpack designed to fit you.
Women's Arc Haul UltraEPX 60L Backpack
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Features
Women's Shoulder Straps | Air Stays | Short Adjustable Torso
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Material
Ultra 100X & EPX 200
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Weight
21.9 oz / 622.0 g
Arc Haul Ultra 70L Backpack
$399.00Weight 21.2 oz (602 g)I’m on the Appalachain Trail right now for the last 30 days and am 100% happy so far. Awesome pack. Probably best on trail.
Long days between resupplies requires a pack designed with ample space and durability. Made from Ultra 100X material, the ultralight Arc Haul Ultra backpack is innovatively designed to be a true workhorse from the Sierras to the Shenandoah.
Comfortably transfer your pack’s weight to your hips with our custom Curved Carbon Fiber frame system. The frame also creates a gap between your back and the pack allowing for air flow that helps keeps you cool.
Featuring adjustable shoulder straps, an interchangeable belt, and a variety of optional modular add-ons, the Arc Haul Ultra will allow you to tackle those long days on the trail with a durable ultralight backpack designed to fit you.
Arc Haul Ultra 70L Backpack
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Features
Curved Carbon Fiber Air Stays | Adjustable Torso
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Material
Ultra 100X
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Weight
21.2 oz / 602.0 g
Arc Zip Ultra 62L Backpack
$449.00Weight 23.6 oz (668 g)It is really the best backpack I have ever owned. Lightweight, waterproof (tested under strong rain) , a lot of space inside and very well balanced all the weight goes in the hips so the shoulders are always relaxed. Love it 🥰
Quickly access your bear bag or easily stow your camera gear on remote multi-day hikes with the zippered front loading panel on the ultralight Arc Zip Ultra backpack.
Comfortably transfer your pack’s weight to your hips with our Curved Carbon Fiber Air Frame. The frame also creates a gap between your back and the pack allowing for air flow that helps keeps you cool.
Featuring adjustable shoulder straps, an interchangeable belt, and a variety of optional modular add-ons, the durable Arc Zip Ultra will allow you to tackle those long days on the trail with a durable ultralight backpack designed to fit you.
Arc Zip Ultra 62L Backpack
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Features
Curved Carbon Fiber Air Stays | Adjustable Torso | Zipper Entry
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Material
Ultra 100X
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Weight
23.6 oz / 668.0 g
Bagger Ultra 25L Backpack
$249.00Weight 10.9 oz (310 g)This is absolutely perfect. Ease of loading and unloading along with typical Zpacks quality. Fits great and weighs nothing.
– Mark P., ★★★★★
The Bagger Ultra 25L is an ultralight frameless pack perfect for bagging peaks in the Adirondacks or for carrying around town. Featuring a small and streamlined design, the Bagger can be packed down small as a secondary pack for summit side trips or used as an ultralight minimalist pack for short adventures into the backcountry. The Bagger Ultra utilizes an included, easily removable foam sit pad as a frame and padding against your back.
Bagger Ultra 25L Backpack
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Features
Frameless | Zipper Entry
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Material
Ultra 100X
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Weight
10.9 oz / 310.0 g
Sub-Nero Ultra 30L Backpack
$225.00Weight 9.2 oz (262 g)The perfect ultralight frameless pack for peak bagging, overnighters, and short trips, the Sub-Nero Ultra is a smaller and slightly more stripped down version of our popular Nero Ultra Backpack.
Streamlined to only the most essential features, the Sub-Nero Ultra is great for hikers with dialed in base weights and minimalist kits.
With 3 different interchangeable strap designs, a removable belt, a comfy sit pad, and a bunch of cool modular add-ons, the versatile SubNero Ultra is your ticket to maximizing every day hike, section hike, or thru-hike. Time to level up your outdoor game!
Sub-Nero Ultra 30L Backpack
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Features
Frameless / Interchangable Straps
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Material
Ultra 100X
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Weight
9.2 oz / 262.0 g
Nero Ultra 38L Backpack
$249.00Weight 9.9 oz (280 g)The Nero Ultra is a compact frameless backpack streamlined to only the most essential features making it great for hikes where less weight and volume is required.
Multiple thru-hikes of the Triple Crown trails have been completed with our Nero series backpacks, helping to prove that smaller volume frameless packs are a legitimate approach to long-distance hiking.
With 3 different interchangeable strap designs, a removable belt, a comfy sit pad, and a bunch of cool modular add-ons, the versatile Nero Ultra is your ticket to maximizing every day hike, section hike, or thru-hike. Time to level up your outdoor game!
Nero Ultra 38L Backpack
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Features
Frameless / Interchangable Straps
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Material
Ultra 100X
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Weight
9.9 oz / 280.0 g
Super Nero Ultra 50L Backpack
$269.00Weight 11.6 oz (330 g)The 50L Super Nero is our biggest and baddest frameless backpack, designed to keep it light and tight with only the must-have features. Perfect for hikes where you want to keep things minimal but mighty.
Our Nero series has conquered multiple thru-hikes of the epic Triple Crown trails, proving that smaller, frameless packs can crush long-distance hikes like a boss.
With 3 different interchangeable strap designs, a removable belt, a comfy sit pad, and a bunch of cool modular add-ons, the versatile Super Nero Ultra is your ticket to maximizing every day hike, section hike, or thru-hike. Time to level up your outdoor game!
Super Nero Ultra 50L Backpack
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Features
Frameless / Interchangable Straps
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Material
Ultra 100X
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Weight
11.6 oz / 330.0 g
Replacement Belts
$59.95Replacement Belts
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Weight
3.6 oz / 102.0 g
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Detachable Small / Women's Shoulder Straps
$59.95Weight 2.3 oz (65 g)Our innovative interchangeable shoulder strap system lets you pick the perfect straps for each adventure, or swap out straps for different hikers. Just slide the straps into the pack and clip them secure.
Our Small / Women's Straps are narrower and shorter to fit a smaller framed hiker such as teenagers or smaller adults.
Like all of our straps, they features comfy 3/8" thick padding, breathable 3D mesh on the underside, and a daisy chain for attaching your favorite accessories. An adjustable position sternum strap is included.
Our small straps measure about 2 3/8" (6 cm) wide by 14.25" (36 cm) long.
Some common accessories include our shoulder pouches, shoulder pouches w/ zipper, or water bottle sleeves.
Backpack Compatibility:
Sub-Nero Ultra 30L - Sep. 5th, 2024 or later
Nero Ultra 38L - Sep. 5th, 2024 or later
Super Nero Ultra 50L - All versions
Detachable Small / Women's Shoulder Straps
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Weight
2.3 oz / 65.0 g
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Detachable Standard Shoulder Straps
$59.95Weight 2.7 oz (76 g)Our innovative interchangeable shoulder strap system lets you pick the perfect straps for each adventure, or swap out straps for different sized hikers. Just slide the straps into the pack and clip them secure.
Our Standard Straps feature a comfortable "S" shape and they fit well on most adults. They measure about 2.75" (7 cm) wide by 17" (43 cm) long.
Like all of our straps, they features comfy 3/8" thick padding, breathable 3D mesh on the underside, and a daisy chain for attaching your favorite accessories. An adjustable position sternum strap is included.
Some common accessories include our shoulder pouches, shoulder pouches w/ zipper, or water bottle sleeves.
Backpack Compatibility:
Sub-Nero Ultra 30L - Sep. 5th, 2024 or later
Nero Ultra 38L - Sep. 5th, 2024 or later
Super Nero Ultra 50L - All versions
Detachable Standard Shoulder Straps
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Weight
2.7 oz / 76.0 g
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Detachable Vest Straps
$109.95Weight 5.3 oz (150 g)Our innovative interchangeable shoulder strap system lets you pick the perfect straps for each adventure, or swap out straps for different sized hikers. Just slide the straps into the pack and clip them secure.
Our harness style Vest Straps feature comfy 3/8" thick padding at the shoulders and layered 3D mesh throughout to help wrap and hug your body. Two adjustable-position sternum straps provide a secure fit when navigating technical terrain or trail running. These straps also include a second webbing attachment that connects near the bottom corners of the pack.
Each side of the strap features an integrated stretchy Lycra water bottle pockets that fits a 1L SmartWater or Body Armor Bottle, or a 600ml UltraFlask, a stow pocket, and a small zippered pocket perfect for storing energy gels or your keys.
Backpack Compatibility:
Sub-Nero Ultra 30L - Sep. 5th, 2024 or later
Nero Ultra 38L - Sep. 5th, 2024 or later
Super Nero Ultra 50L - All versions
Detachable Vest Straps
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Weight
5.3 oz / 150.0 g
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Replacement Backpack Parts
$1.00Replacement Backpack Parts
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Weight
0.02 oz / 0.7 g
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