WITZMAN black expandable laptop briefcase for men with double-buckle flap closure and nylon business bag design

Men's 33L expandable messenger bag with padded top handles, detachable shoulder strap, and multiple zippered compartments

Expandable Laptop Briefcase for Men, 28-33L - B773

WITZMAN black expandable laptop briefcase for men with double-buckle flap closure and nylon business bag design back veiw

Large laptop briefcase for men showing two organized storage compartments for a 15.6-inch laptop, documents, and travel essentials

Black laptop messenger bag for men with adjustable padded shoulder strap for office commuting and business travel

Classic business briefcase with double-buckle front flap, PU leather accents, and secure organizer pockets

Expandable Laptop Briefcase for Men, 28-33L - B773

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Keep work gear separate from your overnight essentials with the B773 expandable laptop briefcase. Its 28L layout expands to 33L when you need more packing space. A padded 15.6-inch laptop sleeve, separate 11-inch tablet compartment and small-item organisers help keep things easy to find. Carry it by hand or shoulder, or use the trolley sleeve with a wheeled suitcase. The USB-A and USB-C ports require your own power bank; no battery is included.

MORE DETAILS

28-33L expandable storage: Keep a slimmer workday profile or unzip extra room for an overnight change of clothes.
2520D water-resistant nylon: Durable exterior for daily use; not a waterproof electronics case.
Separate laptop and tablet sleeves: Padded spaces for a 15.6-inch laptop and an 11-inch tablet.
Two main compartments: Separate paperwork and electronics from personal items.
Double-buckle front flap: Messenger-style coverage over the front storage area.
Small-item organiser pockets: Zip, slip, button and mesh compartments for chargers and accessories.
Quick-access front storage: U-shaped zipped pocket and front organisers keep smaller items within reach.
USB-A and USB-C ports: Connect to your own compatible power bank; battery not included.
Concealed rear zipped pocket: Separate storage for a passport or wallet; not theft-proof.
Hand or shoulder carry: Carry by the handles or wear the strap over a shoulder or across the body.
Padded removable shoulder strap: Adjusts from 30 to 55 inches.
PU synthetic leather handles: Snap-together grip with a side grab handle.
Luggage trolley sleeve: Slides over a wheeled suitcase handle for connected carrying.
Metal zip hardware: Practical access to the bag's everyday storage areas.

SPECIFICATIONS

Model: B773

Product Type: Expandable Laptop Briefcase / Messenger Bag

Capacity: 28L Standard / 33L Expanded

Ideal Use: Business travel, office commuting, work, overnight trips

Dimensions: 17.5 × 7.5 × 12.8 in (44.5 × 19.1 × 32.5 cm)

Expanded Depth: 9.5 in (24.1 cm)

Weight: 3.63 lbs (1.65 kg)

Exterior Material: 2520D water-resistant nylon

Lining: Polyester

Handle Material: PU leather

Colour: Black

Laptop Compatibility: Up to 15.6-inch laptop

Tablet Compatibility: Up to 11-inch tablet

Storage: 2 main compartments with multiple organiser pockets

Carrying Options: Hand, shoulder, crossbody

Shoulder Strap: Detachable, adjustable 30–55 in

USB Ports: USB-A and USB-C (power bank not included)

Closure: Zipper and double-buckle flap

Travel Feature: Rear luggage trolley sleeve

Note: Designed for business travel and commuting. Airline baggage allowances vary by carrier; check the dimensions before travelling, particularly when expanded.

SHIPPING

Shipping cost:

Standard Shipping, Free Shipping
Express Shipping, Shipping cost: $6.99

Process time:

1-2 business days;

Shipping time:

[US,CA,UK,DE,FR] Standard Shipping, 2-7 business days;
Express Shipping, 2-4 business days
Worldwide Shipping, 7-14 business days

WARRANTY & RETURNS

Warranty:
All WITZMAN bags include a 1-year (365-day) limited warranty. Please review our Warranty Policy for coverage details.

Travel fit note:
Airline carry-on and under-seat limits vary by carrier, aircraft, and packing level. Compare the listed bag dimensions with your airline before travel.

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Expandable Laptop Briefcase for Men, 28-33L - B773

$0.00 AUD

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Product guidance

FAQs

Practical guidance on materials, fit, packing, care and everyday use—so you can choose with confidence and travel prepared.

Materials and durability
Packing and carry-on fit
Care, delivery and support

Please read our FAQs page to find out more.

When should I expand the briefcase?

Keep the B773 at 28L for your usual work kit, then open the expansion zip for up to 33L of space. The extra depth is useful for clothing or additional documents on a short business trip. Expansion changes the bag dimensions, so check baggage limits before flying.

Can I carry a laptop and tablet together?

Yes. Separate padded compartments accommodate a laptop up to 15.6 inches and a tablet up to 11 inches, leaving the main compartments for documents and accessories. Check your devices' actual dimensions, especially if you use thick protective cases.

Can I take the expanded bag into the aircraft cabin?

Cabin acceptance depends on your airline, fare and packed bag dimensions. The standard bag measures 44.5 x 19.1 x 32.5 cm; expansion increases the depth to 24.1 cm. Compare both size and packed weight with your booking's allowance. It is not guaranteed to fit under every aircraft seat.

Is a power bank included with the USB ports?

No. The external USB-A and USB-C ports provide a connection to a compatible power bank you supply yourself. The bag has no built-in battery and does not generate power. Follow your airline's current rules for carrying and using power banks.

How should I clean the nylon exterior?

Wipe the 2520D nylon with a soft damp cloth and mild soap, then let it air-dry. Its water-resistant treatment helps with light rain and splashes, but seams and zips are not waterproof. Avoid machine washing, bleach and direct heat.