This sleek, high-pitched powerhouse is crafted from top-grade titanium, ensuring it's as tough as your wildest adventures and as light as a feather. Weighing in at a mere fraction of an ounce, it won’t bog down your pack, yet it delivers an ear-piercing blast that cuts through the forest, making it an essential safety tool for hikers, backpackers, and trailblazers.

Attach it to your shoulder strap and be ready to make some noise when it counts. Whether you're navigating dense trails, signaling for help, or just letting your buddies know it's time to pack up, this whistle ensures you're heard loud and clear.

*This item is not eligible for return.

Winter weather can be harsh, but when the digits drop yours don’t have to feel the chill. Made from a combination of New Zealand's brushtail possum fur, and New Zealand Merino lamb's wool, these Brushtail Possum mittens provide plenty of warmth when you need it most.

The mittens help keep your hands warm and cozy on those cold fall and winter nights.

These mittens are a great companion to the Brushtail Possum Socks, and can be used as a liner under our Vertice Rain Mitts

*Mittens are non-returnable if they have been removed from the packaging.

Protect your investment with our Ultralight Sunglasses Case—your new best friend for ultralight, ultra-cool protection! This sleek, minimalist marvel is made from high-tech Robic material, delivering the perfect mix of durability and feather-light convenience. Whether you're conquering rugged trails or cruising through the city, this fleece-lined case keeps your sunglasses scratch-free and ready for adventure.

With a built-in hang loop, this case is all about versatility and easy access. Clip it to your backpack, belt loop, or bike handle for easy access. No more rummaging through your bag—just grab, go, and know your shades are safe and sound.

The magnetic clasp closure adds a touch of modern sophistication while keeping your sunglasses firmly in place. With its streamlined design and advanced materials, our Sunglasses Case is a must-have accessory for any adventurer who values both style and functionality.

Perfect for long-distance adventures, the Nitecore NU20 Classic is the ultimate ultralight headlamp. Compact, USB-C rechargeable, and weighing next to nothing, it’s designed to keep your pack light and your path bright. Featuring an ultra-high-efficiency (UHE) LED system and a precision unibody optical lens, it delivers a powerful 360-lumen beam that reaches up to 119 yards.

Whether you’re navigating a predawn trail, setting up camp after sunset, or pushing through an unexpected night hike, this headlamp ensures you’re always ready for the adventure ahead.

Check out the rest of our Nitecore offerings.

FlipFuel® allows you to transfer fuel from one canister to another. Consolidate partially empty canisters into one full one for longer trips, or portion off only the fuel you need into a smaller canister for shorter trips.

An efficient stove like the Soto Windmaster only uses about 1/4 ounce (7 grams) of fuel per 2-cup boil. There is no point of carrying significantly more fuel than you need for your trip!

Weigh your canisters when you first buy them and write the full-weight on the can. Then you can calculate the weight of the canister itself and know how much fuel is remaining.

Before transferring fuel, place the receiving canister in a freezer for several minutes to shrink the contents, and place the giving canister in the sun to expand the contents.

EZ-Clean Membrane™ Replacement Filter Cartridge for Katadyn BeFree Water Filtration Systems.

Add our Drinking Tube & Adapter For BeFree to hydrate directly from your filter.

AVAILABLE TO CUSTOMERS IN THE UNITED STATES ONLY

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.

I’m a cold sleeper and was looking for options to help keep my feet warm through out the night. In the past I’ve used wool socks which helped but didn’t quite keep the chill out. The first night I used the goose socks it was like heaven! They are so lightweight and add noticeable warmth! These will extend my hiking season well into the late fall, worth every penny!

– Kimberly N., ★★★★★

After a long day on the trail, there’s nothing better than slipping into a warm sleeping bag. Now get ready to share that feeling with your feet! Meet the ultimate camp companion—the ultra-warm Zpacks Down Booties, designed to keep the cold at bay. 

Whether you're winding down by the fire or settling in for the night, these down socks are your go-to for cozy, toasty toes. But remember, these aren’t for hiking—treat them like your sleeping bag, and your feet will thank you.

Color requests are not available, the Small size comes in Orange/Black, the Medium in Azure Blue/Black, and the Large in Navy Blue/Black. All sizes are fully reversible with black on the inside or outside!

Perfect for hikers and travelers alike, our ultralight foldable hair brush's compact design ensures effortless portability while maintaining durability for rugged outdoor conditions. The built-in mirror isn't only great for daily grooming but can also serve as a signal mirror in a pinch.

This belt is is compatible with our Bagger and Nero Backpacks.

Made with 1" (2.5 cm) webbing that is approximately 24" (61 cm) long on each side. The webbing can be trimmed if desired.

Remove the belt buckle, slide the webbing through the loops on your backpack until tight, then replace the belt buckle.

Tri-glide buckles are commonly used to adjust a webbing strap. We use them to make detachable sternum straps and webbing belts.

Compatible with 1/2" Webbing to make a detachable loop or strap. Webbing not included.

This is a replacement for the standard sternum strap that attaches to the daisy chains on our backpack straps.

The sternum strap loops around the daisy chain webbing on our shoulder straps, and should also be compatible with other similar shoulder straps.

The maximum length is about 12" (30.5 cm) from strap to strap and will fit most hikers.

We also have a longer sternum strap available.

A replacement lower section for our standard Carbon Fiber Trekking Poles.

These will also fit our Minimalist Trekking Poles and most other poles with a 12mm lower section, however the measurement lines may not be accurate on other poles. Mark the spot for your tent height, and for your arm height with a sharpie.

If you are a gram-counter you can saw off the plug, and unneeded length with a hack saw. Just leave a couple inches of overlap.

Don't forget Baskets.

A little thicker than the Nemo. It’s lightweight and does the job quite well.

– Carl S., ★★★★☆

Always a favorite of the ultralight elite, the Z Lite SOL expands upon the performance of the Original Z Lite by adding reflective ThermaCapture™ coating to capture radiant heat and increase overall warmth by nearly 15%.

Factoring in the system of heat trapping dimples, the Z Lite SOL has an R-Value of 2.0, making it perfect for use on its own in warmer weather or layering under another pad for extra warmth in the cold.

The proprietary foams are softer on top for extra comfort and denser on the bottom for extra durability, making the Z Lite SOL an ideal closed-cell foam pad for those in need of an ultralight, highly compact and super-reliable sleep system.

AVAILABLE TO CUSTOMERS IN THE UNITED STATES ONLY

This seam tape is made with adhesive stuck to thin Ultra TNT material as the backing material. It has a white paper layer that peels away leaving clear adhesive stuck to an Ultra TNT strip. Just peel off the paper and press it smooth. No heat required.

The adhesive sticks excellently to inside of any of our Ultra backpacks. It is the best way to seal any leaks or tape issues on the inside of the backpack.

Our XL Airplane Travel Case is a useful addition for the jetsetting adventurer looking to blaze international trails. Slide your full backpack inside to protect it when checking your backpack on to a plane. When you arrive, move the airplane case to the inside of your backpack and it doubles as a pack liner.

The XL size fits 60-70L+ backpacks with space for items in the exterior pockets or beside the backpack. Try our standard size Airplane case for slimmer, smaller backpacks.

A single silicone color band which can be used for color coding dry bags. Just slip it over the 1/2" buckle. They weigh almost nothing at a third of a gram each.

This dry bag is sold as a bundle with a color band here. 

If you squat to pee then the antimicrobial Zpacks Kula Cloth was designed for you. Our “Appalachian Sunrise” cloth is a super absorbent pee cloth made from advanced silver-infused, antimicrobial fabric that is both easy to clean and eco-friendly.

Simply attach the cloth to your pack with the built in snaps and you’ve got yourself an easy to access, zero waste, option for backcountry tinkle time.

Developed over 3,000 miles on the Continental Divide Trail and tested in the Alps, the Women’s Mirage Merino Sun Hoody is designed to deliver ultralight sun protection in a flattering, form-fitting silhouette.

Made in collaboration with Evolved Supply Co, it combines breathable merino performance with soft, technical comfort—available in a fresh selection of colors inspired by the trail and tailored for women.

Thoughtful details like a quarter-zip, airflow-optimized hood, and thumb holes ensure comfort and coverage from sunup to sundown.

Also available in a men's version here. Check out the rest of our Merino Collection.

This quilt strap is included with our Solo Quilts and it is an optional add-on with our Summer Quilts.

The strap cinches tight to your sleeping pad. Snap the sides of your quilt to the strap to keep it tucked under you. The snaps can slide along the shock cord to adjust the gap beneath you.

If you have one of our older Solo Quilts with Flat Clips you'll need to purchase the Strap w/ Flat Clips.

Our ultralight Pipsqueak Knife is one of the smallest, lightest backpacking knives you can carry. The rugged titanium handle and stainless steel blade are up to typical trail tasks such as opening pesky food packaging, cutting guy lines, or mending your gear.

The included carabiner, and compact size make this knife comfortable clipped to your shoulder strap on a long thru-hike, or clipped to a belt loop as your every day carry.

Zpacks Nylo Pro Groundsheet is made from the same durable 1mm clear nylon plastic as our popular Nylo Pro waterproof bags.

Nylo Pro plastic sheeting has higher puncture and tear resistance than the same thickness "cross-linked polyolefin" (Polycro / Polycryo) ground cloths that you may find elsewhere.

It won't last forever but is an ultralight way to protect your tent floor without breaking the bank. Cut your 5' x 8' (152 cm x 2.4m) tent footprint to size with regular scissors. Add stick-on loops to the corners for tent stakes if needed.

These replacement round vertical stays fit our discontinued Arc Blast, Arc Zip, Arc Haul, and Arc Haul Zip Backpacks. If you prefer our original adjustable Arc stay system, these can be retrofitted into any of our new Arc Haul Ultra backpacks. You may need to trim down the length with a hacksaw to get the right fit.

Meet the Alpenblow — the tiny trail luxury you didn’t know you needed. Weighing less than two nickels, this pocket-sized powerhouse plugs into your phone or power bank and quietly inflates your pad in just a few minutes. Save your lungs and avoid the dizzying chore of manually inflating your sleeping pad after a long day of hiking. 

It sips less than 1% of your iPhone battery, or a quarter of a percent of a 10,000 mAh power bank. Multiple nozzles are included to fit popular pads.

True to form, at just 3 grams each Zpacks' wiregate carabiners are a little bit lighter than the competition. They are perfect for clipping items to your pack, hanging your food bag, and many other uses. They are strong enough for almost any backpacking application, but are not meant to support a human's weight.

If you need a spot on your gear to clip it to, add a Stick on Loop.

Zpacks custom-designed Tiny Oval Carabiners are the smallest, lightest, functional ultralight carabiners in existence. Weighing in at a minuscule 1.5 grams each, these carabiners are specifically designed to fit well on 1/2" or 3/4" webbing to conveniently clip to any backpack.

They are good for clipping small items to your backpack, or securing your pocket knife, keys, or wallet to a belt loop.

We also use them to lock in our interchangeable Shoulder Straps on all our backpacks. Also available as an S style carabiner.

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.

These replacement pre-curved vertical stays fit our Arc Haul Ultra, Arc Zip Ultra, and discontinued Arc Air and Arc Air Zip Backpacks.

You may also want to replace your Stay Holster Inserts. Instructions for installing inserts and frame pieces are on the Stay Holster Inserts page.

These replacement pre-curved vertical stays fit our Arc Haul Ultra, Arc Zip Ultra, and discontinued Arc Air and Arc Air Zip Backpacks.

These tiny 5g toothpaste tubes are the ultimate trail companion for adventurers looking to keep their smile bright and breath fresh in the wild. Slip it into your backpack, and you're set for overnights under the stars and those epic summit selfies.

It's lightweight and eco-friendly, ensuring your mouth stays fresh without weighing you down. Adventure-ready and travel-tough, this tiny tube proves that good things really do come in small packages!

The toothpaste tube holds enough for a week or more if used sparingly. When it runs out, pinch the air out, butt it up tight against a normal toothpaste tube, and squeeze more in to re-fill it.

These are not returnable once the packaging is opened, unless there is a defect.

This toothpaste comes standard with the Trailbrush and our Ultralight Travel Toothbrush.

This Dyneema® Composite Fabric patch has a springless cord lock sewn to it and tape adhesive on the back. Peel off the brown paper back and stick it where you need it.

These are useful if you need to add an adjustable length cord to your DCF gear, like your tent canopy or floor. We combine them with 3/32" shock cord to make our Sleeping Pad Slide Stoppers.

These stick excellent to Dyneema® Composite Fabric gear, but they will not stick to silicone fabrics. The adhesive will stick OK to normal nylon or polyester.

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.

The Zpacks Titanium Trail Pen is a custom made ultralight upgrade for hikers who still believe memories are made with ink, not megapixels. Lock the pen into place with our precision-engineered channel system and let your ideas, trail notes, sketches, and discoveries flow. If your gear can outlast a thru-hike, your words should too.

Comfortable for left or right-handed writing. Writes when wet! Pairs great with a Waterproof Trail Notebook!

Includes a small keyring (.02 oz / 7g) and two ink refill cartridges (.02 oz / 7g each.) Pen measures 3.25" (9.26 cm) long. Our tiny oval carabiners, or mini-S carabiners are small enough to fit the little hole on the end of the pen to clip to your pack.

 

Slip into our Octa® Fleece Mittens, your ultralight, trail-ready hand warmers that weigh next to nothing. Crafted from advanced Octa® fleece, these mitts boast a plush, brushed interior for cozy warmth and a durable mesh exterior that resists abrasion without collecting trail crud. These loose-fitting mittens work great solo or when layered over liners or under our Vertice Rain Mitts. Elastic wrists seal in the warmth, making them great for all-season adventures.

Check out the rest of our Octa® Fleece Collection here.

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.

These replacement pre-curved vertical stays fit our Arc Haul Ultra, Arc Zip Ultra, and discontinued Arc Air and Arc Air Zip Backpacks.

You may also want to replace your Stay Holster Inserts. Instructions for installing inserts and frame pieces are on the Stay Holster Inserts page.

Couldn’t be happier with this down hood. Perfect for quilt users, doesn’t slide around or off your head at night like a beanie can on straight, slick hair. Much better than the hood on a sleeping bag, which can slide into your face when you turn, and of course can’t be detached for use as a separate warm hood. The ultra light weight is remarkable. It’s very warm and has a cozy fit and feel.

– Rachel M., ★★★★★

Get ready for sweet dreams on cold nights when bundled up with the Zpacks Down Hood. A perfect companion to your ultralight down quilt, stay cozy and snug tucked away from the cold.

A down hood can move with your head as you turn side to side in your quilt, unlike an integrated mummy bag hood. You can also wear it around camp, or tuck it inside your camp pillow when you don't need it.

Zpacks Down Hoods are reversible, face whichever color you prefer outward.

Clean and classic, our Trail Trucker Hat looks right at home on trail, in town, or spending a lazy day on the lake.  Great for blocking the sun or propping up rain hoods, the Trail Trucker's standard snap-back adjustment will fit just about any head size.

Made with nylon fabric which is lighter weight and faster drying relative to typical cotton trucker hats. It also floats!

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.