Home Gear Aulumu’s Cyberpunk B01 Bolts an Aluminum MagSafe Mount to an X-Pac EDC Sling
Our editors carefully select every product we recommend. We may earn a commission from these links. Learn more

Aulumu is one of those brands that seemingly came out of nowhere. In just a few short years, the Shenzhen outfit has built a genuine cult following on MagSafe wallets, kickstands, and power banks that sport a heavy dose of Cyberpunk influence, and we’ve covered plenty of them. Now they’re taking their first swing at soft goods with the B01 Urban Transit Gear Sling Bag.

Let’s be honest, a company this obsessed with magnets was probably never going to release a “normal” sling. The B01’s equipped with a detachable aluminum compartment mounted to the face of the bag, holding your phone magnetically on the outside providing quick access on the go.

And if you need to navigate, tap to pay, or even take a call, simply grab the phone, do the thing, and snap it back. It’s all designed be a one-handed experience, and all without ever touching a zipper.

An adjustment knob lets the mount fit any iPhone from the 12 onward, plus Samsung’s Galaxy S25 Ultra.

As for the actual bag portion, Aulumu clearly did its homework. The B01 is cut from X-Pac, the diamond-gridded technical fabric beloved by the EDC pack crowd. And the hardware is legit too, with a Fidlock magnetic buckle up top and YKK zippers throughout.

Capacity sits at a slim 2.5 liters and weighs roughly 400 grams, though an expandable gusset stretches things to 3.5 liters to expand with your loadout.

The aluminum mount also swaps onto Aulumu’s smaller $89 B02 sling, and it ties into the same magnetic ecosystem as the G09 stand and M10 power bank we’ve already gone hands-on with. Hell, they’ve practically built themselves a wearable charging dock.

Brand: Aulumu
Model: B01 Urban Transit Gear Sling Bag
Material: X-Pac technical fabric (nylon/polyester)
Capacity: 2.5L (expandable to 3.5L)
Dimensions: 30.5cm H x 18.5cm W x 1.8cm D (9cm expanded)
Weight: 400g
Hardware: Fidlock magnetic buckle, YKK zippers
Phone Compatibility: iPhone 12 and later, Samsung Galaxy S25 Ultra
Colors: Matte Black, Glossy Black, Pulse Green
MSRP: $145
The Aulumu B01 is priced at $145 and comes in Matte Black, Glossy Black, and Pulse Green, with the Matte Black colorway shipping from September 1st. Head over to Aulumu’s website to check it out, where you’ll also find the smaller $89 B02 that shares the same detachable mount.
Aulumu B01 Urban Transit Gear Sling Bag
The magnet-obsessed tech accessory brand’s first-ever bag is an expandable X-Pac sling with a detachable aluminum mount that keeps your phone snapped to the outside.












