Bagger Ultra 25L Backpack
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.
- Small and streamlined design.
- Ultra fabric features a woven Ultra High Molecular Weight Polyethylene (UHMWPE) face fabric laminated to a waterproof backing. Ultra fabric boasts extremely high abrasion and tear resistance and is the strongest fabric we offer.
- The pack material is waterproof and is constructed using hydrophobic thread, and all seams and attachment points are taped, making the pack highly water resistant. We still suggest using dry bags for your important items like your sleeping bag.
- Access the contents of the spacious main compartment with a waterproof wrap around zipper
- A large external zippered pocket on the outside of the pack is a great place for storing items that you'd like to access quickly.
- The top of the pack features a small zippered pocket, creating the perfect place for storing your phone, keys, or wallet.
- Side pockets are sized to fit 1 liter bottles. They are positioned low on the pack and slanted forward for easy access without removing the pack.
- A stretchy external sit pad pocket is located on the back of the pack and allows you to easily remove your sit pad on breaks.
- A closed cell foam sit pad measuring 11" x 15.5" (28 cm x 39.4 cm) is included and adds an additional 1 ounce to the total weight of the pack. The foam pads fits inside the external pocket and provides some cushion and support against your back.
- Comfy 3/8" thick by 2.75" wide padded contoured shoulder straps. The straps have a daisy chain for clipping on items, and an adjustable position sternum strap is included. The shoulder straps have 3D mesh on the underside which gives them a little bit more cushion.
- A detachable 1" webbing belt is optional. The webbing belt can also be added later.
- This pack can be folded up to fit inside a 1 gallon Ziploc bag. It can easily be packed in your luggage or used as a carry-on.
- Looks as nice at the airport as it does on trail. Fits nicely under airplane seats when used as a carry-on.
- All Zpacks gear has a two year limited warranty against defects in materials or workmanship. Please see our return / warranty policy.
- Made in the USA.
Weight: The weight is displayed near the add to cart button. It changes depending on the options you select.
Included foam sit pad: 11" x 15.5" (28 cm x 39.4 cm) / adds 1 ounce (28 g) to the total weight of the pack.
Belt (optional): 1" (2.5 cm) wide x 50" (127 cm) circumference
Body dimensions: 5.5" x 11" x ~18" (14 cm x 28 cm x 46 cm)
Volume: 25L (18L main body, 1.5L each side pocket, 4L zippered pocket)
Load Capacity: Recommended up to 20 lbs (9 kg)
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3.3oz/sqyd Ultra 100 Ultra 100 is composed of a woven 100 denier Ultra High Molecular Weight Polyethylene (UHMWPE) face fabric laminated to a waterproof lining. Our 2nd generation fabric has a 50% thicker, more durable .75 mil laminate. The fabric is fully waterproof and has extremely high tear and abrasion resistance. Our Repair Tape and Adhesive products stick extremely well to the interior of this fabric. Tear Strength: 69.4 lbs. warp; 89.6 lbs. fill Water Resistance: >20,000 mmH₂O |
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5.3 oz/sqyd 3D Spacer Mesh This mesh has a three-dimensional structure which allows airflow and adds cushioning. We use it on the underside of our backpack's shoulder straps and belts to absorb sweat, add cushion, and add grip. Our 3D mesh weighs less than most other types. Weight: 5.3 oz/sqyd (180 g/m²) Thickness: About 3/32" (2.5 mm) |
Dial in your set up with add-ons commonly purchased with our Bagger backpacks.
















Bagger Add-Ons
Padded Belt for Nero
Designed specifically for use with our Nero backpacks, our detachable padded belt helps take strain off your shoulders while transferring your packs load to your hips. This allows you to push the limits of your Nero's comfortable carry range; helping you to use your frameless pack on longer excursions to the backcountry.
The detachable padded belt can be removed on trips when it is not needed.
The detachable padded belt is NOT compatible with our Sub-Nero or Bagger 25L packs, however a standard webbing belt can be used on those smaller packs.
Detachable 1" Webbing Belt
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.
Water Bottle Sleeve
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.
Shoulder Pouch w/ Zipper
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.
Shoulder Pouch
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.
Padded Belt Pouch (Pair)
Designed specifically for the Nero, these 1L pouches feature a padded back for comfort and an integrated channel to slide over 3/4" or 1" wide webbing belts. Perfect for folded maps, snacks, hats, gloves, gadgets and more.
*THESE DO NOT FIT OUR FRAMED BACKPACKS*
Front Utility Pack Accessory
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.
Multi-Pack
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.
Pair of Shoulder Strap Pads
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.
Umbrella Holster
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.
Aquaclip Kit
What an incredibly handy little thing! I’m one of those folks that hate hydration reservoirs inside my pack. I needed a handy way to attach a bottle to my pack’s shoulder strap and this is it. It holds bottles securely and allows easy access. Genius!
– John S., ★★★★★
Tired of bending over backwards to reach your water bottles? Our Aquaclip Kit allows you to to clip a water bottle to your backpack’s shoulder straps or belt so you have it easily accessible up front. It will fit any small water bottle with a standard size neck. The bottle can be popped in and out easily on the go. We find that it carries the weight of a 500 ml (16.9 fl oz) bottle well.
This clip is not designed to carry heavier water bottles. If you're looking to carry a larger bottle, like the 1L SmartWater bottle, we recommend our Water Bottle Sleeve instead.
The Zpacks kit includes one AquaClip, two One-Wrap® Velcro bands for securing it to the daisy chain on your shoulder straps, and a rubber end cap so that the clip cannot slide out of the velcro.
Check out more of our Backpack Add-Ons.
Medium Dry Bag
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.