Nero 38L Backpack
Designed for hikers pushing their limits and obsessing over every gram. The ultralight Nero is a compact frameless backpack streamlined to only the most essential features making it great for hikes where less weight and volume is required.
Multiple thru-hikes of the Triple Crown trails have been completed with the Nero, helping to prove that smaller volume frameless packs are a legitimate approach to long-distance hiking.
Featuring a removable webbing belt, sit pad, and a variety of optional modular add-ons, the highly versatile Nero will allow you to get the most out of any day, section, or thru-hike.
- Constructed from 3.1 oz/sqyd Dyneema® Composite Fabric (Hybrid).
- Strategically placed attachment loops accommodate our most popular backpack add-ons like our Top Side Pockets, Shock Cord Lashing and Ice Axe Loops.
- Three belt positions allow you to move the webbing belt up or down to fit a range of torso heights. The included belt is 1" (2.5 cm) wide and has a maximum adjustment of about 50" (127 cm) circumference. The belt contributes 1.2 ounces (34 grams) to the total weight. It can be trimmed down or removed.
- Belt pouches with integrated belt pads are sold separately for those who desire more belt cushioning.
- Integrated roll-top closure straps clip to the sides of the pack using the same 1/2” side release buckles featured on our Arc Series backpacks. The straps can be cinched to compress the pack's volume or used to stand tall items like trekking poles in the side pockets.
- 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 provides some cushion and support against your back. The sit pad is held in place with shock cord and comes off quickly for breaks. The shock cord (.3 oz / 8.5 g) and sit pad are removable and replaceable.
- The shock cord can also be re-tied to accommodate up to 20" tall folded sleeping pads, or taller sit pads.
- The pack material is waterproof. All seams and attachment points are taped, making the pack highly water resistant.
- Comfy 3/8" thick by 2.5" 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.
- Side pockets are sized to fit 1 or 1.5 liter bottles. They are positioned low on the pack and slanted forward for easy access without removing the pack. The pockets have drainage holes at the bottom, and elastic that keeps them tight at the top.
- Large stretchy mesh center pocket is great for quick access items. Mesh also lets you dry wet clothing and gives you a clear view of your gear.
- 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.
- 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.
Pack Weight: 10.7 ounces (303 g) | Foam sit pad adds 1.0 oz (28 g)
Belt (included): 1" (2.5 cm) wide x 50" (127 cm) circumference, 1.2 oz (34 g)
Body dimensions: 5.5" x 12" x 23" (14 cm x 30 cm x 59 cm)
Volume: 38L (25L main body, 2.5L each side pocket, 8L center pocket)
Load Capacity: Recommended up to 20 lbs (9 kg)
.3.5 oz/sqyd Mesh
This is the mesh that we use on our backpack's center pockets. It has a relatively light weight for mesh, while being difficult to tear. It can withstand getting caught on branches and other typical abrasion that backpacks are subjected to. The hole size is a about 4 mm (a little over 1/8").
Weight: 3.5 oz/sqyd (119 g/m²)
5.3 oz/sqyd 3D Spacer Mesh
This mesh has a three-dimensional structure which allows airflow and adds cushioning. It has a tricot backing so you can't see clear through the holes. 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)
This backpack has three belt attachment positions allowing you to move the belt up or down to fit a range of torso heights. The actual distance on the pack from the bottom of the belt to the top of the shoulder straps can be adjusted from about 18" to 22" (46 to 56 cm), which will fit most adults. On a frameless backpack, it is nice to have the shoulder straps roughly level with the tops of your shoulders (rather than wrapping up around them) so that more weight is forced on to the webbing belt. The pack body does not extend much above your shoulders and load lifter straps are not needed.
The webbing belt will fit up to around 50" circumference and can be trimmed down for smaller waists or swapped out for larger waists. To move the belt to a different position, slide off the belt buckle and back the webbing out of the backpack attachment points.
Click here for full instructions on how to wash our Dyneema® Composite Fabric backpacks.
Simple and well designed.
I fell in love with my gear slowly as it’s simplicity, lightness and durability were proven over the months and miles.
6 shipments and all on time. Quality stuff
I’ve finally found the perfect summer pack! It’s the most comfortable pack I’ve ever worn. The size and weight carry limits are perfect for my summer trips where I don’t have a whole lot of gear and my weights right around 15-20lbs.
I've only used this 3 times before Covid-19 hit and hiking/camping was put on hold. But I absolutely love this pack. It feels so good on my back. However, there IS a weight limit. I heard from an AT hiker that you shouldn't put more than 15 pounds in the bag or it will start to get uncomfortable. I agree. I had somewhere between 20 and 25 pounds in it (hiking with 3 preteens and a husband for 7 miles, so we pack A LOT of food!) and I felt the weight on my shoulders more than my hips. My hips took MOST of it, but there was enough weight on my shoulders to feel it, but not be painfully uncomfortable for 7 miles. I wore it on a short hike (so less food) and I didn't feel it at all. I like how the belt is interchangeable b/c I worry about losing weight on our AT hike, and I've seen others have to buy a whole new pack b/c their belt didn't fit anymore. So an interchangeable belt was a requirement. Another big selling point is all of the add-ons that are available at ANY TIME. I don't have to have a complete pack the day I buy it. I can add pieces (pole straps, more pockets, extra shoulder pads...)as I feel I need them. The customer service at Zpacks is outstanding-another selling point for me. I have to know if my back breaks on the trail (which I highly doubt it will!) that customer service will respond immediately and do whatever they can to get me back on the trail. I've contacted them through emails with questions about the pack and they always responded promptly. I have no doubt they will respond in a timely manner.