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.