Sub-Nero Add-ons

Easy to use. Enough support to be able to slide bottle in and out. Elastic loop holds the bottle in when bending over. Top notch!! Thanks, Zpacks.

– France M., ★★★★★

Water Bottle Sleeves are a great way to keep your water easily accessible while also counter-balancing your backpack. Designed to fit most popular tall slim 1L bottles such as Smart Water, Body Armor, Essentia and similar, these sleeves will attach to the shoulder straps on just about any backpack.

The Hydrapak UltraFlask Speed 600 ml allows you to drink on the go. Its soft material allows it to fit snugly in most vest pockets and it shrinks as you drink to minimize water movement.

The SpeedFill™ cap flips open for quick top ups at aid stations, and the wide mouth can accommodate drink mixes and ice cubes. The included drinking-tube cap can also be swapped out with a BeFree Filter. You can also use just a bite valve without the drinking tube.

A perfect match for our Vest Straps or for our Water Bottle Sleeves. Grab two bottles for balanced hydration.

Designed for the adventurer on the go, our Shoulder Pouch w/ Zipper is the ideal place to store items that you need on the ready, like a small camera, your wallet, a map or your smart phone. The streamlined design carries comfortably on your shoulder, and you will hardly notice them there.

The small exterior mesh pocket can be used to store your small items like lip balm, emergency whistle, or a compass.

Keeps your cell phone secure and handy when you need it for navigation or to take a picture. Pouch weighs next to nothing; a must for every serious hiker. I highly recommend this product.

– Paul G., ★★★★★

Shoulder Pouches are the ideal place to keep your small camera or phone in reach for taking quick photos. The main compartment of the shoulder pouches are a good size for your wallet, car keys, map, headlamp, mittens, sunglasses, candy bars, pack towel, GPS, or any other items you would like to have within easy reach. The pouches carry comfortably on your shoulder, and you will hardly notice them there.

The small exterior mesh pocket can be used to store your small items like lip balm, emergency whistle, or a compass.

**DCF material shoulder pouches are priced lower while supplies last. They look fine on Ultra backpacks and function about the same.

We've teamed up with Glacial Gear to create the ultimate 100% merino wool ultralight trail rag. Made from 180 gsm Hydro-Duct Merino Wool, it's the ideal companion for adventurers who demand both style and substance on the trail. From banishing stubborn dirt and sweat to confidently snatching that sizzling cook pot handle this rag does it all. Throw in merino wool's odor-fighting superpowers and a handy pack loop for easy access, and consider your trailside needs met.

Our Nero V Top Strap adds additional stability when you’re carrying heavier items on the top of your backpack.

It can be used to carry a bear canister so long as the canister can squish into your gear as shown.

The Nero V Top Strap is modular and can be added or removed from your pack as necessary.

If you need a V Top Strap for your Arc Frame Backpack, you'll can purchase one specifically designed to work with one here.

Really glad I bought this pouch—it works with my pack’s waist belt, it’s practically weightless, and it’s the perfect size for phone, compass, map and a few snacks.

– Charles Y., ★★★★★

From the summit to the streets, the versatile Front Utility Pack Accessory provides quick and easy access to all your essentials.

With plenty of space for your phone, a camera, a jacket or snacks, the ultralight F.U.P.A. can be worn as a stand-alone item while bagging a peak or for a night out on the town.

Leave the webbing belt at home and connect the F.U.P.A. directly to one of our backpacks for the ultimate pack accessory.

Really appreciate the ability to carry it different ways and to carry it alone on days in town. Saves much time and aggravation as you can get to most things you need during your hike when carried on your chest.

– Mark B., ★★★★★

This versatile four-in-one backpack accessory is one of our most popular items.  The ability to choose between four different configurations helps make the Multi-Pack the perfect companion for just about any adventure.

Need a spare set of Multi-Pack straps?  Click here.

Check out more of our Backpack Add-Ons.

Excellent, Immediately noticed that the pack was more comfortable with these pads helping to hike longer.

– Louis S., ★★★★★

Our Shoulder Strap Pads add extra padding to your shoulder straps right where you need it. These shoulder strap pads should be compatible with almost any backpack straps. They are made with 3/8" closed cell foam, and a layer of soft cushioning 3D mesh on the underside. 

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.

Stay safe in the backcountry with this ultralight, ultra-tiny whistle clip. This small, low profile whistle is surprisingly loud, and allows you to signal for help when you find yourself in danger on an adventure.

Clip the whistle to your backpack's daisy chain or sternum strap to keep it handy. Or thread a piece of cord through the hole to hang it from a loop.

*This item is not eligible for return.

 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 has saved many a hike through scorching temperatures and inclement weather. Great product. Will never hit the trail without it.

– Christian D., ★★★★★

The Umbrella Holster allows you to keep your hands free while protecting yourself from the rain and sun with an ultralight umbrella. It easily attaches to the daisy chain on most backpack's straps. In calm weather you can keep both hands on your trekking poles, while in strong wind or driving rain you can rest one hand on the umbrella to control the angle.

The Umbrella Holster consists of a clip and an adjustable shock cord loop that attaches to your shoulder strap.

Attach the buckle above the sternum strap on your strap's daisy chain and then attach the shock cord loop at the bottom of the daisy chain.

Insert your umbrella into the clip and then cinch the shock cord tight around the umbrella’s handle.

Perfect for use with our Lotus UL Umbrella.

This thing was easy to attach and very lightweight. It will help me not lose track of IDs and cash in the bottom of my pack!

– Karen J., ★★★★★

Make sure you don’t lose your most important items. Attach this stick-on key zip pouch to the inside of your backpack, and your keys, wallet, passport, smartphone or other valuables will still be where you left them at the end of your hike. When you get to town the pouch detaches and fits in your pocket.

Just peel off the brown paper backing from the included flat clips and attach the pouch inside your backpack where you want it. We usually stick it towards the top of the backpack right behind the shoulder straps so that it is easy to get to. The adhesive bonds well and will also work on any urethane coated backpack material. Spare Stick on Flat Clips are available if you want to clip this pouch to a second location.

Very lightweight and compact. Roll top allows for flexible stowing options. All specs exactly as stated.

– Patrick M., ★★★★★

Trek through damp forests with confidence and dry gear. This is a good size for multiple clothing items, a tent, or a down quilt. This size fits well horizontally in most smaller backpacks.

Need a different size?  Check out the rest of our Dry Bag collection.

This item is super. It is very light weight and keeps my pack dry. I am glad I purchased it with my Arc Haul 62L.

– Walter H., ★★★★★

Protect your backpack from pouring rain and muddy ground with our Pack Cover. Our pack cover is an ultralight option to keep your backpack dry, including the outside pockets. It includes an elastic clip to secure it from storm winds.

Consider a Pack Liner as an alternative, if you don't mind your outer pockets getting wet.

Had high expectations of this case given Zpacks pedigree but still exceeded easily - crazy light, simple yet super-intelligent design, incredibly easy to use.

– Mathew B., ★★★★★

Our Airplane Travel Case is a useful addition for the jetsetting adventurer looking to blaze international trails. Slide your 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.

Starting at only 1.8 oz (51.7g) per pair, the Zpacks Ultralight Camp Shoes are crafted with serious hikers and backpackers in mind. Made from durable Robic fabric and breathable lycra mesh, these shoes offer a lightweight yet protective layer that lets your feet breathe after a long day on the trail.

The thin yet resilient 4mm foam sole is designed to keep rocks, roots, and rugged terrain from disturbing your downtime, so you can enjoy those campfires and late night privy visits without the weight of traditional camp shoes or waterlogged trail runners.

Compact and collapsible, these shoes are as packable as they are practical, fitting snugly in even the smallest corners of your backpack. Whether you’re a dedicated thru-hiker or a weekend warrior, the days of big, clunky footwear dangling off your pack are over.

These shoes are meant to be worn for short distances around camp. Not intended for hiking.

The Nitecore NU25's ultralight weight, features, and form factor have made it a staple in the outdoor community for years. Now updated with USB-C charging, a longer run time, more lumens, and a lighter headband the Nitecore NU25 continues to push boundaries.

It features multiple brightness levels, simple controls with separate buttons for red versus white light, and a built in rechargeable lithium ion battery. The NU25 is one of the most versatile and compact headlamps available.

The Nitecore NU25's ultralight weight, features, and form factor have made it a staple in the outdoor community for years. Now updated with USB-C charging, a longer run time, more lumens, and a lighter headband the Nitecore NU25 continues to push boundaries.

It features multiple brightness levels, simple controls with separate buttons for red versus white light, and a built in rechargeable lithium ion battery. The NU25 is one of the most versatile and compact headlamps available.

Summit Suds Powdered Soap is perfect for the outdoors! It offers all the advantages of conventional backpacking soap, but is up to 80% lighter. Its pH balance of 7 is as harmless as water. It's also fragrance-free, mess-free, and won't freeze, making it ideal for all-season adventurers.