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Black 18-inch laptop backpack, 15.8 L capacity, water-resistant 900D polyester, matte finish, magnetic closure, anti-theft buckle

Thunderobot

Thunderobot TBJM03 17.3" 18" 15.8L laptop backpack

SKU CH-QYMH-Y8279 MPN TBJM03

Water-resistant 18" backpack holds a 17.3" laptop in a 15.8 L main compartment with five pockets, magnetic closure and anti-theft buckle, weighing 2.09 lbs

  • Size18 in (45.7 cm)
  • Color familyBlack
  • ActivityHiking
  • Compatible screen size17.3 in (43.9 cm)
  • Product typeBackpacks
  • Product colorBlack
  • Water-resistant 900D PU coating shields gear from rain
  • 8-litre capacity with fold-over top expands for travel
  • Fits 17.3-inch laptops and accessories in padded compartment
  • Magnetic closure plus anti-theft buckle secures belongings
  • Weighs 2.09 lbs with 900D melange yarn and 210D lining

17.3-inch laptop backpack

The Thunderobot TBJM03 is a 15.8-litre backpack built from 900D melange yarn with a water-resistant coating and 210D lining. It fits most 17.3-inch laptops along with an adaptor, mouse and keyboard. The main compartment uses a magnetic closure with a hidden snap and an anti-theft buckle for secure access. Dimensions are 610 mm by 310 mm by 150 mm and the bag weighs 2.09 lbs.

Commuters and light travellers

The three-dimensional screen-print design and matte texture suit business-casual environments while the lightweight polyester construction keeps daily carry comfortable. Five compartments organise accessories and documents for quick retrieval. Buyers who need a dedicated camera insert, a hydration bladder sleeve or a hard-shell protective base should look at specialised packs instead.

15.8-litre capacity and expandable top

The main volume handles a 17.3-inch laptop, charger, peripherals and a change of clothes without bulging. A fold-over top adds extra room when you pack bulkier items such as a light jacket. The bag reaches its limit when you try to fit a second large laptop, full-size tripod or multiple heavy textbooks alongside the primary device.

How it compares

Measured against everything we stock in Laptop Carrying Cases & Bags, at today’s prices. Recalculated every night.

Price $59.99
Pricier than about 90% of the 5,942 comparable items (median $24.99).

Specifications

Product
Model nameTBJM03
Product typeBackpacks
Product colorBlack
Color familyBlack
Size & build
Size18 in (45.7 cm)
Main materialPolyester
Compatibility
Compatible screen size17.3 in (43.9 cm)
More details
Age groupAdult
Suitable forUnisex
ActivityHiking

Questions about this item

What laptop size does the 17.3-inch compartment of this TBJM03 backpack fit?

The dedicated compartment is sized for 17.3-inch laptops and includes an elastic stretch buckle to secure the device during transport.

How does the 900D PU-coated polyester shell handle daily wear compared to standard fabrics?

The 900D melange yarn with PU coating provides a water-repellent, matte surface that resists scratches, dirt and abrasion while remaining soft to the touch.

How can I verify the magnetic closure and anti-theft buckle are functioning correctly after packing?

Confirm the magnetic snaps engage fully without force, the hidden snap sits flush, and the anti-theft buckle locks the main zipper pulls together so they cannot be opened from the outside.

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