BANGE Ontra 77115S Slim Expandable Laptop Backpack – Anti-Theft

The Bange Ontra 77115S is a lightweight expandable waterproof backpack with anti-theft pockets and a flannel-lined sleeve for a 15.6" laptop. Slim by day and roomy when expanded, it adapts to your needs. Ideal for commuting, school, and travel.

$69.99 USD
Color: Black
Size: Small Size
Model: BG-77115S

1️⃣ WATER-RESISTANT OXFORD CLOTH – DURABLE & SPLASH-PROOF – The BANGE BG-77115 Ontra is crafted from high-quality Oxford cloth with a polyester lining, delivering a water-resistant, wear-resistant build that's tough enough for everyday challenges. A sleek, slim backpack that keeps a low profile while standing up to your busiest days.
2️⃣ EXPANDABLE SLIM DESIGN – COMPACT WHEN YOU WANT IT, ROOMY WHEN YOU NEED IT – A hidden zipper expands the bag by 8 cm for extra storage, letting the Ontra stay slim for daily carry and grow for travel days. One adaptable backpack that flexes instantly to match whatever your schedule demands.
3️⃣ FLANNEL-LINED 15"–16" LAPTOP COMPARTMENT – TECH PROTECTION – A soft flannel-lined laptop compartment holds laptops up to 16 inches, keeping your tech safe from bumps and scratches. Your most valuable device travels protected and secure through commutes, school days, and flights.
4️⃣ ANTI-THEFT ZIPPER + WET/DRY STORAGE + USB – SMART, SECURE ORGANIZATION – A concealed anti-theft zipper and hidden pockets protect your valuables, while wet/dry separation, card pockets, a keychain holder, and a glasses hoop keep everything organized. A built-in USB charging port keeps your devices powered on the move.
5️⃣ ERGONOMIC SMART CARRY DESIGN – COMFORT ALL DAY LONG – A breathable sponge back panel, ergonomic shoulder straps, a chest buckle, and a top handle deliver comfort and convenience through long wear. The trolley strap slides easily over suitcase handles, making airport transitions effortless.
6️⃣ 43×31×7 CM (EXPANDS +8 CM) | 0.9 KG – WORK, SCHOOL & TRAVEL READY – At a slim 43 × 31 × 7 cm and just 0.9 kg, the BANGE BG-77115 Ontra is your smart everyday companion — slim when you travel light, expandable when your day demands more. Secure, organized, and effortlessly cool for work, school, and flights.

Front view of black BANGE BG-77115 Ontra backpack with slim minimalist design, smooth front panel, and padded shoulder straps
BANGE Ontra 77115S Slim Expandable Laptop Backpack – Anti-Theft
$69.99 USD

BANGE 77115 Ontra A+ content
BANGE 77115 Ontra A+ content
BANGE 77115 Ontra A+ content
BANGE 77115 Ontra A+ content
BANGE 77115 Ontra A+ content
BANGE 77115 Ontra A+ content
BANGE 77115 Ontra A+ content
BANGE 77115 Ontra A+ content

The BANGE Ontra 77115S is where function meets refined style — a sleek, slim profile that hides serious storage and security. Made from durable Oxford cloth, it's water-resistant, wear-resistant, and built to keep up with busy days.

Why You'll Love It

  • Expandable design — slim by default; a hidden zipper unlocks extra capacity when you need it.
  • Laptop ready — soft flannel-lined sleeve protects 15–16" laptops from bumps and scratches.
  • Anti-theft protection — hidden zippers and concealed pockets keep valuables safe in crowds.
  • Featherlight at 0.9 kg — easy all-day carry without the weight.
  • Smart organization — wet/dry separation, card pockets, glasses hook, and a keychain holder.
  • Travel-friendly — trolley strap slides over a suitcase handle; USB charging port for devices.
Specifications
Dimensions 43 × 31 × 7 cm (expandable by 8 cm)
Weight 0.9 kg
Material Oxford cloth outer, polyester lining
Laptop fit 15"–16"
Organization Laptop sleeve, wet/dry storage, card pockets, front & side access
Extras USB port, anti-theft zipper, glasses hook, trolley strap
Options Small / Plus size · Black, Gray, Blue

For all orders exceeding a value of 49.99$ shipping is offered for free.

Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.

Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.

Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:

– Received the wrong item.
– Item arrived not as expected (ie. damaged packaging).
– Item had defects.
– Over delivery time.
– The shipper does not allow the goods to be inspected before payment.

The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.

Specifications

Brand
Product Type
Material
Capacity
Weight
Dimensions
Features Lightweight, Internal padding, Expandable, and Waterproof
Style
Use
Gender

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