Aulumu B01 Urban Transit Gear Sling Bag

The Aulumu B01 Urban Transit Gear Sling Bag is built around one simple idea: keeping your phone easier to reach without sacrificing useful everyday storage. Its standout feature is a detachable aluminum magnetic phone compartment that sits on the outside of the bag, letting you grab your phone for navigation, calls, or payments and snap it back into place without opening the main compartment.

The sling uses lightweight, water-resistant X-Pac fabric with reinforced construction, along with a Fidlock magnetic buckle and YKK zippers. Capacity expands from 2.5L to 3.5L, giving it enough room for essentials such as a power bank, cards, earbuds, passport, or compact umbrella while keeping the overall profile slim.

Aulumu designed the magnetic phone compartment to be modular, so it can also be moved between the B01 and the smaller B02. The mount is adjustable and currently supports iPhone 12 models and newer, along with the Samsung Galaxy S25 Ultra. The bag itself weighs 400g and can be worn crossbody, over the shoulder, or close to the body using its adjustable strap.

Available in Matte Black, Glossy Black, and Pulse Green, the B01 feels especially well suited to commuting and city travel, where quick phone access matters. Rather than hiding your most-used device inside another zipper compartment, it turns the phone into part of the carry system itself.

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