B01 X-Pac Sling Bag with Magnetic Phone Mount

B01 Urban Transit Gear Sling Bag

Color: Matte Black

7-DAY RETURNS
SECURE CHECKOUT
FREE SHIPPING
LOCAL WAREHOUSE SHIPPING WHEN AVAILABLE

$145.00

B01 Urban Transit Gear Sling Bag

Color: Matte Black

7-DAY RETURNS
SECURE CHECKOUT
FREE SHIPPING
LOCAL WAREHOUSE SHIPPING WHEN AVAILABLE

$145.00

DESCRIPTION

Built for faster urban movement. B01 combines X-Pac technical fabric with a detachable aluminum magnetic phone mount, keeping your phone instantly accessible while everyday essentials stay organized inside. With expandable 2.5L–3.5L storage, Fidlock hardware, YKK zippers and an adjustable shoulder strap, B01 is made for commuting, city exploration and lightweight travel.

Color

Matte Black

FEATURES

• Detachable Magnetic Phone Compartment — access your phone without opening the main bag, then snap it back into place.

• 2.5L–3.5L Expandable Storage — room for a power bank, cards, compact umbrella, and everyday tech.

• X-Pac Technical Fabric — lightweight, water-resistant, and wear-resistant for everyday carry.

• Fidlock Magnetic Buckle — quick one-handed opening with secure mechanical locking.

• YKK Zippers — smooth and reliable for frequent everyday use.

• Modular B01 / B02 System — switch the magnetic compartment between compatible B01 and B02 bags.

FEATURES

• Detachable Magnetic Phone Compartment — access your phone without opening the main bag, then snap it back into place.

• 2.5L–3.5L Expandable Storage — room for a power bank, cards, compact umbrella, and everyday tech.

• X-Pac Technical Fabric — lightweight, water-resistant, and wear-resistant for everyday carry.

• Fidlock Magnetic Buckle — quick one-handed opening with secure mechanical locking.

• YKK Zippers — smooth and reliable for frequent everyday use.

• Modular B01 / B02 System — switch the magnetic compartment between compatible B01 and B02 bags.

Mag Mount Bag Series

B01 Urban Transit Gear Sling Bag

Beyond Storage. Redefining Carry.

Mag Mount Bag Series

B01 Urban Transit Gear Sling Bag

Beyond Storage. Redefining Carry.

aulumu Urban Gear Series · Mag Mount Bag

Insight: From Easy-In to Anytime-Out
Keep your phone within easy reach for navigation, payments, calls, and more.
Innovation: The Mag Mount Bag
A magnetic aluminum compartment moves your phone from inside the bag to outside for faster access.
Impact: Detachable Magnetic Compartment
Detach, access, and snap it back into place—quick, secure, and intuitive.

Beyond Storage. Redefining Carry.

aulumu Urban Gear Series · Mag Mount Bag

Insight: From Easy-In to Anytime-Out
Keep your phone within easy reach for navigation, payments, calls, and more.
Innovation: The Mag Mount Bag
A magnetic aluminum compartment moves your phone from inside the bag to outside for faster access.
Impact: Detachable Magnetic Compartment
Detach, access, and snap it back into place—quick, secure, and intuitive.

Less Searching, More Moments

Proprietary Design <Detachable Magnetic Metal Compartment>

Less Searching, More Moments

Proprietary Design <Detachable Magnetic Metal Compartment>

Calling, No Searching

Take phone, call, put back, just one hand.

Calling, No Searching

Take phone, call, put back, just one hand.

Riding, No disruption

Urban Rides. Easy Navigation.

Riding, No disruption

Urban Rides. Easy Navigation.

Detachable Compartment

Detaches in seconds and switches seamlessly between B01 and B02 for quick-access phone carry.

Detachable Compartment

Detaches in seconds and switches seamlessly between B01 and B02 for quick-access phone carry.

Adjustable Fit. Built for More.

The width of the compartment can be adjusted using the knob to fit the iPhone 12 series and all later iPhone models.

Adjustable Fit. Built for More.

The width of the compartment can be adjusted using the knob to fit the iPhone 12 series and all later iPhone models.

Carry It Your Way

Use B01 as a streamlined sling, or attach the magnetic compartment for quick-access phone carry.

Carry It Your Way

Use B01 as a streamlined sling, or attach the magnetic compartment for quick-access phone carry.

X-PAC® Performance Fabric

Lightweight, durable X-Pac® fabric with reinforced construction for everyday urban carry.

X-PAC® Performance Fabric

Lightweight, durable X-Pac® fabric with reinforced construction for everyday urban carry.

Fidlock® Magnetic Buckle

Magnetic Guidance + Mechanical Locking=Fast and Stable

Fidlock® Magnetic Buckle

Magnetic Guidance + Mechanical Locking=Fast and Stable

YKK® Zippers

B01 features YKK zippers to ensure a smooth opening and closing experience even with frequent use.

YKK® Zippers

B01 features YKK zippers to ensure a smooth opening and closing experience even with frequent use.

Phone Out. Life In.

2.5L capacity, perfect for storing frequently used travel items

Phone Out. Life In.

2.5L capacity, perfect for storing frequently used travel items

Multi-Compartment Design, Ready to Go

Expandable Compartment

Expanded Storage up to 3.5 L

Expandable Compartment

Expanded Storage up to 3.5 L

Accessory Clip for Everyday Essentials

Attach small essentials for easy access, while the adjustable shoulder strap lets you fine-tune the fit.

Accessory Clip for Everyday Essentials

Attach small essentials for easy access, while the adjustable shoulder strap lets you fine-tune the fit.

Multiple Carry Modes

Adjust the strap for crossbody, shoulder, or close-to-body carry—built to adapt to different looks and everyday movement.

Multiple Carry Modes

Adjust the strap for crossbody, shoulder, or close-to-body carry—built to adapt to different looks and everyday movement.

Built for Urban Transit

Matte Black & Glossy Black & Pulse Green

Built for Urban Transit

Matte Black & Glossy Black & Pulse Green

B01 / B02

One magnetic attachment system, two urban lifestyles

Explore B02

B01 / B02

One magnetic attachment system, two urban lifestyles

Explore B02

- Product Name: B01 Urban Transit Gear Sling Bag
- Material: Nylon, Polyester
- Weight: 400g
- Capacity: ~2.5 L(Unexpended); ~3.5L(Expanded)
- Size: 30.5 cm H × 18.5 cm W × 1.8 cm D (9 cm D when expanded)
- Color: Matte Black, Glossy Black, Pulse Green
- Compatibility: iPhone 12 series and all later iPhone models, as well as the Samsung S25U. It is not compatible with any other brands or models at this time.

What is the difference between the B01 and a regular phone pouch?

The B01 is designed to do more than simply hold your phone inside a pouch. It features a detachable magnetic compartment that lets you move your phone from inside the bag to an easily accessible position on the outside. This allows quick access to your phone without repeatedly opening the bag, making it especially convenient for urban mobility.

Can the magnetic compartment be used with the B02?

Yes. The detachable magnetic compartment can be switched between compatible B01 and B02 bags. The B02 is designed for carrying minimal essentials, while the B01 offers more storage for commuting and short trips. You can switch the magnetic compartment between them based on your carrying needs.

Is the phone likely to fall off when attached to the magnetic compartment?

The magnetic compartment is designed with silicone limit structures to help securely hold your phone in place. For everyday use, make sure your phone is properly aligned with the magnetic area before carrying it.

Currently, the magnetic compartment supports the iPhone 12 series and later iPhone models, as well as the Samsung Galaxy S25 Ultra. During strenuous exercise or high-impact activities, we recommend storing your phone inside the bag.

What are the advantages of X-Pac fabric?

X-Pac is a lightweight, water-resistant, and durable technical fabric with a recognizable diamond-patterned structure. It helps the B01 maintain its shape while keeping overall weight low, making it well suited for commuting, everyday carry, and urban outdoor use.

Is the B01 completely waterproof?

No. The B01 is made from water-resistant X-Pac fabric and can handle light rain and everyday splashes. However, it is not fully waterproof because water may enter through areas such as the stitching, zippers, and other structural openings. We do not recommend prolonged exposure to heavy rain.

Who is the B01 suitable for?

The B01 is ideal for city commuters, frequent phone users, everyday carry enthusiasts, and anyone who wants quick access to their phone while carrying more than just the basics. Its expandable storage is suitable for essentials such as a phone, card holder, power bank, earbuds, passport, and compact umbrella, making it practical for commuting, city travel, and short trips.

How should I choose between B01 and B02?

Choose the B01 if you regularly carry everyday items such as a card holder, power bank, earbuds, and compact umbrella. Choose the B02 for lighter outings when you only need essentials such as your phone, passport, and cards.

If your carrying needs change throughout the week, the modular B01 / B02 system allows you to switch the compatible magnetic compartment between the two bags.

Is the B01 strap removable?

The B01 crossbody strap is adjustable but not removable. You can adjust the strap length based on your height, clothing, and preferred carrying position, whether you prefer wearing the bag closer to the body or lower on the shoulder.

Can the B01 be expanded?

Yes. The B01 features expandable storage for greater flexibility when your everyday carry changes. It can hold frequently used items such as phones, passports, cards, change, earbuds, power banks, and other compact essentials.

For clothes, laptops, or larger travel items, we recommend pairing the B01 with a backpack or suitcase.

Which phone models are compatible with the magnetic compartment?

Currently, the Detachable Magnetic Metal Compartment is compatible with the iPhone 12 series and all later iPhone models, as well as the Samsung Galaxy S25 Ultra. It is not compatible with other phone brands or models at this time.

B01 / B02

One Magnetic Attachment System.
Two Urban Carry Styles.

Choose the setup that fits how you move.

B01 is built for commutes, city exploration, and longer everyday carry, while B02 keeps things compact for quick trips with essentials like your phone, passport, and cards.

The detachable magnetic compartment is interchangeable between B01 and B02, allowing you to switch configurations as your everyday carry needs change.

B01 Urban Transit Gear Sling Bag

B02 Urban Quick-Access Phone Sling Bag

Best For

Commuting, city exploration, and short trips

Concerts, airport security, night runs, and light travel

Carry Range

Half-day to all-day carry

Short trips and frequent access

Capacity

Approx. 2.5 L, expandable

Approx. 0.3 L

Key Advantage

Versatile, modular everyday carry

Smaller, lighter, and built for faster access

Magnetic Compartment

Detachable / Interchangeable

B01 Urban Transit Gear Sling Bag

Best For

Commuting, city exploration, and short trips

Carry Range

Half-day to all-day carry

Capacity

Approx. 2.5 L, expandable

Key Advantage

Versatile, modular everyday carry

Magnetic Compartment

Detachable / Interchangeable

B02 Urban Quick-Access Phone Sling Bag

Best For

Concerts, airport security, night runs, and light travel

Carry Range

Short trips and frequent access

Capacity

Approx. 0.3 L

Key Advantage

Smaller, lighter, and built for faster access

Magnetic Compartment

Detachable / Interchangeable

Customer Reviews

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B01 Urban Transit Gear Sling Bag

$145.00

aulumu Urban Gear Series · Mag Mount Bag

Insight: From Easy-In to Anytime-Out
Keep your phone within easy reach for navigation, payments, calls, and more.
Innovation: The Mag Mount Bag
A magnetic aluminum compartment moves your phone from inside the bag to outside for faster access.
Impact: Detachable Magnetic Compartment
Detach, access, and snap it back into place—quick, secure, and intuitive.

aulumu Urban Gear Series · Mag Mount Bag

Insight: From Easy-In to Anytime-Out
Keep your phone within easy reach for navigation, payments, calls, and more.
Innovation: The Mag Mount Bag
A magnetic aluminum compartment moves your phone from inside the bag to outside for faster access.
Impact: Detachable Magnetic Compartment
Detach, access, and snap it back into place—quick, secure, and intuitive.

One Magnetic Attachment System.
Two Urban Carry Styles.

Choose the setup that fits how you move.

B01 is built for commutes, city exploration, and longer everyday carry, while B02 keeps things compact for quick trips with essentials like your phone, passport, and cards.

The detachable magnetic compartment is interchangeable between B01 and B02, allowing you to switch configurations as your everyday carry needs change.

B01 Urban Transit Gear Sling Bag

DESCRIPTION

FEATURES

FEATURES

Mag Mount Bag Series

B01 Urban Transit Gear Sling Bag

Mag Mount Bag Series

B01 Urban Transit Gear Sling Bag

Beyond Storage. Redefining Carry.

aulumu Urban Gear Series · Mag Mount Bag

Beyond Storage. Redefining Carry.

aulumu Urban Gear Series · Mag Mount Bag

Less Searching, More Moments

Less Searching, More Moments

Calling, No Searching

Calling, No Searching

Riding, No disruption

Riding, No disruption

Detachable Compartment

Detachable Compartment

Adjustable Fit. Built for More.

Adjustable Fit. Built for More.

Carry It Your Way

Carry It Your Way

X-PAC® Performance Fabric

X-PAC® Performance Fabric

Fidlock® Magnetic Buckle

Fidlock® Magnetic Buckle

YKK® Zippers

YKK® Zippers

Phone Out. Life In.

Phone Out. Life In.

Multi-Compartment Design, Ready to Go

Multi-Compartment Design, Ready to Go

Expandable Compartment

Expandable Compartment

Accessory Clip for Everyday Essentials

Accessory Clip for Everyday Essentials

Multiple Carry Modes

Multiple Carry Modes

Built for Urban Transit

Built for Urban Transit

B01 / B02

B01 / B02

FAQs

One Magnetic Attachment System. Two Urban Carry Styles.

B01 Urban Transit Gear Sling Bag

B02 Urban Quick-Access Phone Sling Bag

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SHOP

SUPPORT

INFO.

SHOP

SUPPORT

INFO.

Mag Mount Bag Series

B01 Urban Transit Gear Sling Bag

Mag Mount Bag Series

B01 Urban Transit Gear Sling Bag

Beyond Storage. Redefining Carry.

aulumu Urban Gear Series · Mag Mount Bag

Beyond Storage. Redefining Carry.

aulumu Urban Gear Series · Mag Mount Bag

Less Searching, More Moments

Less Searching, More Moments

Calling, No Searching

Calling, No Searching

Riding, No disruption

Riding, No disruption

Detachable Compartment

Detachable Compartment

Adjustable Fit. Built for More.

One Magnetic Attachment System.
Two Urban Carry Styles.

One Magnetic Attachment System.
Two Urban Carry Styles.