Nitecore NB20000 Gen 3 Power Bank
The Nitecore NB20000 Gen 3 offers long-distance adventurers and backpackers 20,000mAh of reliable power in an ultralight carbon fiber shell.
Dual USB-C ports let you charge multiple devices at once, or even charge the bank while it powers something else, while LED indicators make it easy to see when it’s time to recharge and top off.
With its rugged, IPX5 water resistant rating and minimalist design, it’s a trail-ready power bank you can count on from the first mile to the last resupply.
Check out the rest of our Nitecore offerings.
- Encased in a solid carbon fiber frame, the NB20000 Gen 3 is lighter and smaller than its predecessor, with a sleek, modern, minimalist design.
- The NB20000 comes standard with two USB-C ports which allow for fast and convenient charging, enabling you to charge multiple devices simultaneously.
- Pass-through charging allows multiple power banks to be chained and charged at once.
- 20,000mAh capacity can charge a modern phone 4-6 times depending on the phones battery capacity.
- Auto-detect function low current mode for delicate electronics.
- LED remaining power level indicator.
- Carbon fiber panels makes the NB20000 Gen 3 highly resistant to puncture, abrasion, and impact.
- Meets the UN38.3 airline approval standard.
- IPX5 rated water resistant, and comes with a slew of safeguards against short-circuiting, overcharging, over-discharging, or overheating.
- A USB-C to USB-A adaptor is included (.44 oz / 12.5g).
- Imported.
Capacity: 20,000mAh 3.6V (72Wh)
Rated Energy: 11,200mAh 5V (TYP 3A)
Dimensions: 4.65" x 2.72" x .85" (11.8 cm x 6.9 cm x 2.2 cm)
Input 1: USB-C: 5V ~ 3A / 9V-2A / 12V ~ 1.5A (18W MAX)
Input 2: USB-C: 5V ~ 3A / 9V-2A / 12V ~ 1.5A (18W MAX)
Output 1: USB-C: 5V ~ 3A / 9V ~ 2.22A / 12V ~ 1.66A / 10V ~ 2.25A (22.5W MAX)
Output 2: USB-C: 5V ~ 2.4A / 9V ~ 2A / 12V ~ 1.5A / 10V ~ 2.25A (18W MAX)
Dual Ports: 5V ~ 3A (MAX)
Click Here to Download Manual
While we’re best known for our ultralight shelters, backpacks, and quilts, our lineup doesn’t stop there. We carry over 80 unique accessories, each thoughtfully designed to complement your core gear and enhance every mile of your adventure. From camp comforts to field-ready essentials, these small details can go a long way towards leveling up your next adventure.
Did You Know?
Zpacks Trail Cool Sun Hoody
Shield yourself from the fierce summer sun and feel the breeze with the Trail Cool Sun Hoody. Constructed with a comfortable and stretchy ultralight UPF 40+ fabric, our technical hoody is engineered to keep you cool while providing maximum sun protection.
Featuring a loose fit billowing hood and quarter-length opening for air flow, the Trail Cool Sun Hoody was built to let you breathe in the backcountry.
Check out the rest of our Trail Cool collection to discover our full lineup of breathable UL clothing.
Zpacks x TownShirt Button Up Hiking Shirt
We’ve teamed up with TownShirt Co to create a modern and minimalist take on the classic button-up shirt featuring a premium finish and a tastefully understated design.
From the boardroom to the backcountry, our ultralight long-sleeved button-up is the ultimate choice for adventurers looking for technical performance with a sophisticated look.
The roomy but fitted cut is hyper-breathable, keeping you cool on warm days with its airy design while providing maximum protection from the sun with a UPF 40+ rating.
The shirt’s stretchy 100% polyester fabric dries quickly and comfortably conforms to your body’s movements, allowing you to conquer the demands of any adventure.
Zpacks Ventum Wind Shell Jacket
Amazingly light but cuts the wind and holds the heat in with a layer underneath!
– Joe B., ★★★★★
The right layer can make all the difference. That's why the Ventum Wind Shell is purpose-built for those moments when a base layer alone isn’t enough, but an insulated jacket would be overkill.
A whisper-light layer that blocks the bite of the wind while staying highly breathable on the move, the Ventum Wind Shell starts at just under 2 ounces and disappears into your pack until you need it.
Pairs well with an Octa Fleece Hoody to cut the wind and trap in warmth. Ounce for ounce the Ventum Wind Shell has the best warmth to weight ratio of anything we sell.
Whether you’re logging miles on a thru-hike or pushing big days in unpredictable weather, the Ventum Wind Shell keeps you focused on the journey, not your layers.
Zpacks Trail Cool T-Shirt
Shield yourself from summer sun and feel the breeze with the Trail Cool T-Shirt. This short-sleeve top is crafted from soft, stretchy, ultralight UPF 40+ fabric, providing breathable coverage and fast-drying comfort for long-distance hikers and trail runners who log big miles in the heat.
Our Trail Cool polyester fabric is designed to let the air through and pack down tiny. A spare t-shirt doesn't add much weight or bulk to your backpack, gym bag, or travel kit.
This t-shirt runs a little bit long and loose which is good for air flow and coverage. Size down if you are typically between sizes.
Check out the rest of our Trail Cool collection to discover our full lineup of breathable UL clothing.
Zpacks Merino Wool T-Shirt
Our ultralight Trail Cool Merino Wool T-Shirt is comfortable and super soft to the touch. Merino Wool base layers are ideal for hiking, backpacking, trail running and other outdoor adventures. Wool's natural ability to control moisture and odor help to keep you comfortable every step of the trail.
Check out the rest of our Merino Collection.
Zpacks Crest T-Shirt
This is the lightest and most comfortable day to day t shirt.
– Jason H., ★★★★★
Designed for comfort and fashion, rep Zpacks on and off the trail with our high quality soft tri-blend T-Shirt.
Material: Tri-Blend 50% Polyester, 25% Cotton and 25% Rayon
Printed in the USA.
Zpacks Octa Camp Pants
Engineered for outdoor versatility, the ultralight Octa® Camp Pants are crafted with Octa® fleece that offers durability, breathability, and a superior warmth-to-weight ratio. They are excellent as sleep pants, while also doubling as a base layer under backpacking pants or shorts.
A soft, cozy interior ensures all-day comfort, while the tapered design and gusseted crotch provide a streamlined fit that layers easily under pants or hiking shorts. Deep front pockets keep your essentials close, whether you’re on the trail or lounging at camp.
*The length has been increased and is in effect across all sizes as of November 2025 thanks to feedback.
Check out the rest of our Octa® Fleece Collection here.
Zpacks Octa Fleece Thermal Bottoms
Zpacks Octa® Fleece Thermal Bottoms beat the warmth and weight of all other long underwear in their class. Designed to be worn under your hiking pants in frigid weather, under shorts in cool weather, or worn as an ultralight sleep layer, these leggings are unmatched when ounces count.
Octa® Fleece features a soft, fluffy interior that traps warmth and keeps you cozy, and an abrasion-resistant exterior that withstands wear and tear.
Check out the rest of our Octa® Fleece Collection here.
Zpacks Trail Cool Joggers
Technical gear isn’t just for your pack; it belongs in your everyday kit too. Our Trail Cool Joggers are built with cutting-edge Japanese tech Toray PrimeFlex™ fabric, designed to keep up with thru-hikes, overnighters, trail runs, and city adventures alike.
They’re crazy durable, super breathable, and move with you thanks to an articulated cut and 4-way stretch that feels like a second skin. Whether you're grinding out big miles or grabbing post-trail tacos, these joggers bring next-level versatility with zero compromises.
Check out the rest of our Trail Cool collection to discover our full lineup of breathable UL clothing.
Zpacks Trail Cool Hiking Shorts
Technical gear isn’t just for your pack. Every aspect of our Trail Cool Hiking Shorts was designed to meet the rigorous demands of thru-hikers, backpackers, and outdoor enthusiasts.
Constructed with premium Toray PrimeFlex™ fabric, these shorts are designed with long-term durability and mobility in mind. The articulated cut and 4-way stretch mean you’ll feel free to take on miles of rugged terrain with zero restrictions. Whether you wear them backpacking, running, or as ultralight swim shorts the Zpacks Trail Cool Shorts have you covered.
Check out the rest of our Trail Cool collection to discover our full lineup of breathable UL clothing.
Zpacks Octa Fleece Neck Gaiter
When the morning air has more bite than your trail mix, the Zpacks Octa® Neck Gaiter has your back (and your neck, face, and occasionally your hair). This ultralight wonder isn’t just a gaiter, it’s a shape-shifting sidekick ready to tackle whatever the trail throws at you.
Need warmth? Done. Sunburn defense? Check. Bad hair day camouflage? Absolutely. Think of it as a multi-tool for your head except way softer, lighter, and less likely to pinch your fingers.
Check out the rest of our Octa® Fleece Collection here.
Zpacks Octa Fleece Hat
The Zpacks Octa® Fleece hat delivers impressive warmth without the bulk, ensuring you stay cozy whether you're tackling a windy trail or your morning commute.
Ultralight by design and featuring a double layer of fleece around the ears, this hat locks in heat where it matters most while remaining breathable and easy to pack. Warmth without compromise—no matter where the day takes you.
For a heavier weight 4 season option, check out our Brushtail Possum Beanie.
Check out the rest of our Octa® Fleece Collection here.
