When not full, is this bag soft enough to "squeeze/fold" into 20x30x40cm (to comply as under-seat on flights)?

Positive. No problem to do that

What is the maximum voltage/amperage that the cable supports?

The Voltage is 5 Volt, normal for charging with USB. It can run 2.1 Ampere (fast charging)

best back pack 60cm or 24ins

Not clear what you're asking, if you say that the back pack is about 60cm height or if you can fit a 24ins laptop or screen? Well. You can just fit about 21 inches laptop, a gaming one comes perfectly inside

How suitable would this be for a supermarket shop? I.e. A supermarket hand basket piled up high with food?

If your shopping didn't have too many bulky items in it, it should hold a baskets' worth. Never tried it though. My son uses it as a school bag, holds a chrome book, alot of heavy books and folders and a packed lunch with water bottle!

Extra Large 50l Travel Laptop Backpack Water Resistant Work Backpack | Desertcart Saint Vincent and the Grenadines

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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EC$440

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Sold byAmazon Saint Vincent and the GrenadinesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎒 Travel smart, charge fast, and carry more — your ultimate 50L business backpack awaits!

MAXIMIZE YOUR CARRY - 50L capacity with 20 pockets keeps everything perfectly organized for work, school, and travel.
VERSATILE STYLISH - Fits laptops up to 17.3", water-resistant polyester, and luggage strap for seamless travel convenience.
TRAVEL SMART SECURE - TSA-approved 180° laptop compartment speeds you through airport security with anti-theft protection.
STAY POWERED ON THE GO - Integrated USB charging port lets you charge devices hands-free while commuting or flying.
COMFORT MEETS DURABILITY - Breathable multi-layer back panel and padded straps reduce shoulder stress on long hauls.

This Extra Large 50L Travel Laptop Backpack combines high-capacity organization with TSA-approved design, featuring 20 pockets including a padded laptop sleeve for up to 17.3-inch devices, a built-in USB charging port, and an anti-theft hidden pocket. Crafted from durable, water-resistant polyester with breathable padding and adjustable straps, it’s engineered for business trips, school, and outdoor adventures, ensuring comfort and security while keeping you effortlessly connected.

Specifications

ASIN	B08SQN53HT
Age Range Description	Adult, Teen
Apparel Fabric Stretch	No Stretch
Apparel Fabric Weight Class	Medium Weight
Backpack Design	Laptop Backpack
Backpack Harness Type	Shoulder Harness
Best Sellers Rank	1,462 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 15 in Laptop Backpacks
Brand Name	LIWAG
Closure Type	Zipper
Colour	Black
Compatible Device Size Maximum	43.94 Centimetres
Country Of Origin	China
Customer Reviews	4.6 4.6 out of 5 stars (11,495)
Embellishment Feature	Plush Accent
Fabric Type	Polyester
Fit Type	Snug
Fit to Size Sentiment	Positive
Item Dimensions D x W x H	20.3D x 34W x 48H centimetres
Item Shape	rectangular prism
Item Type Name	Backpack
Item Weight	0.9 Kilograms
Lining Description	Nylon
Manufacturer	LIWAG
Material Type	Metal, Nylon, Polyester
Number Of Pockets	20
Number of Compartments	3
Number of Items	1
Occasion Type	travel
Other Special Features of the Product	Water Resistant, Laptop Compartment, Anti-Theft, Large Capacity, USB Charging Port, Breathable, Airflow Back Panel, Tear Resistant, Bottle Holder, Hand Carry Handle, Adjustable
Outer Material Type	Polyester
Pattern	Solid
Pocket Description	Padded laptop sleeve, front zipped pocket, 2 x water bottle pockets, 12 x inner pockets, anti theft pocket
Product Care Instructions	Hand Wash Only
Product Style	casual
Recommended Uses For Product	School, Travel, Work
School Type	institute
Shell Type	Soft Shell
Shoulder to Bottom Hem Length	50 Centimetres
Size	17.3inch
Sleeve Length Description	Long Sleeve
Sport Type	Hiking
Storage Volume	50 litres
Strap Type	Adjustable, Shoulder Strap
Theme	Airplane
Unit Count	1.0 count
Water Resistance Level	Water Resistant
Zippered Compartment Count	3

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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