Peak Design City Backpack 15L Review

The Peak Design City Backpack 15L is a streamlined everyday carry that takes a noticeably different approach from some of the brand’s more feature-heavy bags. Instead of leaning into camera-specific organization or an abundance of external attachment points, this backpack keeps things simple with a low-profile silhouette, subtle branding, and just enough organization for the daily essentials. We’ve been testing the 15L version, which sits alongside a larger 22L model with many of the same design features. The smaller size is particularly appealing if you want something that stays close to the body and doesn’t look oversized when it’s not completely full.

At first glance, the City Backpack 15L almost doesn’t look like a Peak Design bag. There’s just a small logo near the top, while the rest of the exterior is clean and understated. The Mono Shell™ 660D gives it some texture without making the design feel overly technical, and the tapered construction helps it maintain its shape even when loaded. There are a few clever details here, too, including a built-in hanging hook, hidden exterior pockets, and comfortable shoulder straps. However, that sleek design comes with a few trade-offs, particularly when it comes to capacity and laptop access.

External Components

Peak Design bags have always been on the modest side in terms of aesthetics, but the City Backpack 15L takes it even further with its simplicity. The Mono Shell™ 660D has a slightly crinkled appearance, but the material and construction give the backpack enough structure and uniformity to maintain its shape. Even when fully packed, the tapered upper section doesn’t simply collapse or sag. It can be pushed down, but it springs back to its intended shape, which helps the bag retain its clean appearance throughout the day.

That low-profile approach extends to the external pockets. Rather than putting obvious storage compartments on the front, Peak Design integrates them into the seams. There’s a zippered pocket along the top rear edge, which we particularly like because positioning it toward the back keeps the front of the bag from sagging and pulling downward. Inside are two slip pockets and a key leash with a small plastic carabiner. It’s a useful amount of organization for everyday carry without making the exterior look busy.

The side pockets are similarly subtle. One is designed to accommodate a water bottle up to about 24 ounces, although taller bottles can prevent the zipper from closing completely. Some 24-ounce Hydro Flask bottles are guilty of this, so your mileage may vary with a closed pocket design like this. There’s some elastic here to accommodate wider bottles, but the cleanest look comes with a smaller bottle. The opposite pocket uses the same basic construction but includes two mesh pockets inside, making it more useful for smaller accessories. We found that this pocket could also accommodate a bottle, although doing so makes the internal mesh organization less practical.

One of the more unusual features is the integrated aluminum BagLev™ hanging hook. It’s essentially a built-in Hero Clip-style hook that stays attached to the bag and doesn’t rotate around like a removable clip might. A rubberized section prevents the aluminum from scratching whatever surface it rests on. It’s a small addition, but one that adds legitimate utility when we’re in a bathroom stall, office, airport, or anywhere else we’d rather keep our backpack off the floor.

The harness system is appropriately simple for a 15L backpack. There are two padded shoulder straps, but no sternum strap or hip belt, and there isn’t a way to add either one. The straps are covered in soft mesh padding that feels almost like memory foam, with enough contouring to settle comfortably against the body. We found the straps comfortable even against bare skin, which is useful in warmer conditions.

Adjustment is handled with small aluminum hardware. Pulling the adjusters out loosens the straps, while pulling them upward quickly tightens the fit. It’s an intuitive system that makes on-the-go adjustments easy. Our main complaint is the lack of strap keepers. If you dislike loose webbing hanging below your shoulders, you’ll have to find your own solution.

Fit Notes

Among the medium-built Pack Hacker crew, we found that the City Backpack 15L sat around the very base of the back, near the top of the tailbone. Despite that relatively low position, the slim profile keeps the bag from feeling bulky or unwieldy. The overall shape stays close to the body, reinforcing the everyday aesthetic rather than making the bag feel like a miniature travel pack.

The shoulder straps are the real star of the fit. Their soft padding and contoured shape allow them to settle naturally against the shoulders, and we found them comfortable across different torso sizes during testing. There’s no sternum strap to help distribute the load, but that isn’t a major concern given the backpack’s 15L capacity and intended everyday use. As long as you’re not loading it with particularly heavy gear, the straightforward harness should be more than adequate.

Inside The Backpack

The main compartment opens with dual YKK zippers and provides a straightforward open storage area for everyday gear. There’s no elaborate partitioning, and that works reasonably well for a backpack of this size. During testing, we packed a tech pouch and a relatively thick hoodie and still had some vertical room left. However, the City Backpack 15L is quite slim, so bulky items can consume its available space quickly. We’d recommend thinking in terms of flatter clothing and streamlined pouches rather than trying to turn this into a compact gear hauler.

The bag doesn’t stand on its own, which may be inconvenient if you regularly need to load or unload it from the floor. We don’t consider that a major issue because the built-in hook provides another way to keep the bag straight and elevated. There’s also a zippered pocket tucked into the interior side of the main compartment. It’s a good location for less-frequently accessed items such as wipes, chargers, or a battery bank, and its placement doesn’t noticeably distort the exterior silhouette.

One important consideration is how the side pockets affect the main compartment. Because the bottle pockets occupy internal volume, whatever you put inside them protrudes into the main compartment. A full water bottle can therefore take up a surprising amount of usable space. Removing it immediately creates more room inside, so the 15L capacity isn’t quite as straightforward as the number suggests.

The laptop compartment is well-padded and separated from the rest of the contents. There’s a tablet sleeve, two slip pockets, and a pen slot, while the laptop itself sits in a dedicated sleeve toward the back. A false bottom provides roughly an inch of space beneath the laptop, adding some protection against accidental drops. There’s also a concealed mesh pocket designed to hold an AirTag.

Unfortunately, laptop access is the least polished aspect of the bag. The mesh upper pocket hangs down over the laptop compartment, obstructing access even to a fairly modest 13-inch laptop. We found this manageable by tucking the mesh out of the way, but if you frequently access your laptop throughout the day, the interference could become frustrating. A 16-inch laptop can technically fit in the 15L model, but it sits over the false-bottom area and leaves less protection around the upper corners. If carrying a 16-inch laptop is a priority, the 22L version is a better fit and provides more appropriate sizing and protection.