Kasgo Kids Backpack for Boys Girls (13L) – 29×12×38cm school bag with chest strap and water bottle holders
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Product description
The essentials for primary school days
If you’re shopping for a kids’ backpack that’s built for everyday school life, the Kasgo Kids Backpack makes a pretty sensible case. It’s a lightweight, water-resistant school bag designed for younger pupils (notably ages 6–9 and Y1 primary), with enough room for the basics and storage that’s easy for children to use.
On paper, it’s aimed at reducing hassle: adjustable padded shoulder straps, a padded back panel, plus a chest strap to help the bag sit more securely when children are walking, playing, or heading into class. It also uses SBS zips with an extra-long zip pull, so it’s less of a battle when kids need to open up quickly.
Still, it’s worth keeping expectations realistic. A 13L capacity is designed for primary essentials, not for lugging around bulky items all week. If your child tends to bring unusually large folders or lots of extra gear, you may find the size limits quickly.
What stands out in day-to-day use

The bag’s layout looks geared towards a typical school routine: one main compartment with double zips for day-to-day items, a front pocket for smaller essentials, and side pockets that suit a water bottle (and even an umbrella, depending on how you pack).
A practical micro-example: imagine a typical morning where your child has an A4 folder, a couple of books, and a packed snack. The main zipped section is where most of that lives, while the front pocket gives them somewhere to keep smaller items that they can access without rummaging through everything. The side pocket can then hold a bottle so it’s easy to grab and go.
The chest strap is the kind of feature that sounds optional until you notice the difference. With it, the straps are more likely to stay in place on active days—especially for children who tend to slouch one strap off their shoulder.
Materials and comfort (and where it may fall short)


Kasgo says the backpack is made from quality polyester, with a focus on being durable and light enough for school use. There’s also a padded back panel and padded, adjustable shoulder straps, plus a carry handle at the top.

For comfort and control, this combination makes sense for children in the early years. The extra-long zip pull is also a thoughtful touch if you’ve ever watched a child struggle with zips that are too fiddly.
Where it may not fully satisfy everyone: the description focuses on being lightweight and water-resistant, but doesn’t suggest it’s a fully weatherproof solution. So if you expect heavy rain every commute, you’ll still want to take care with what you pack and consider whether you need extra protection for paper items.
Size, capacity and storage fit for A4
This model is listed at 29×12×38cm and 13L capacity, with a stated weight of 0.34kg. It’s specifically described as fitting an A4 folder, which is a key practical detail for UK primary school routines.
The interior is also broken down into storage zones, including an interior pocket size and separate front and side pocket dimensions. That helps when you’re thinking about what will go where—A4 folder in the main compartment, smaller items in the front pocket, and a bottle in the side area.

If you’re the sort of buyer who likes to tidy packing by habit (rather than allowing a “mystery pile” approach), the organised layout is likely to feel helpful rather than decorative.
Key takeaways for buying decisions
Who it suits best


It’s a good fit if you want a lightweight, primary-focused school backpack with adjustable padded straps, a chest strap for stability, and storage intended for A4 folders and everyday essentials.
It makes sense if your child is starting to manage their own bag access, thanks to the SBS zips and extra-long zip pull.

Who should probably look elsewhere
It’s not for you if your child needs a larger capacity for bulkier items than an early primary kit usually includes, or if you’re expecting a genuinely waterproof bag for all-weather conditions.
You may want to skip it if you prefer a different style of carry/organisation—this one is clearly designed around the front pocket + side bottle holders + a main compartment approach.
Also worth considering: if your child is very particular about strap comfort or fit, you’ll want to make sure the adjustable strap and chest strap can be set comfortably for their height range.
Tech specs

- Name: Kasgo Kids Backpack for Boys Girls, 13L Lightweight Water-Resistant Primary School Bag
- Type: Children’s school backpack
- Capacity: 13L
- Size: 29×12×38cm
- Weight: 0.34kg
- Fit: A4 folder
- Strap length: 40–68cm
- Main compartment: double zips (stated)
- Includes: chest strap and water bottle holders (side pockets stated)
- Materials: polyester (stated)
- Water resistance: water-resistant (stated)
Quick FAQs before you buy


Will it fit an A4 folder?
It’s described as fitting an A4 folder, so it’s set up for that kind of school paperwork.
Is it suitable for younger children?

The listing targets ages 6–9 and Y1, which is exactly where the size and practical zip pull design should matter.
Does the bag have somewhere to put a water bottle?
Yes—there are side pockets intended for a water bottle (and the description also notes an umbrella).
Can children open the zips easily?
The description mentions SBS zips with an extra-long zip pull, which should make it easier for children to open and close compared with short zipper pulls.
Final verdict
When it makes sense
A solid pick if you want a child-friendly primary school backpack that’s lightweight, water-resistant on paper, and organised for A4 folders and daily essentials—especially with the added security of a chest strap.
It might not be the best match if you need something for heavier loads or you’re expecting stronger weather protection than “water-resistant” suggests. If your child’s kit is typical for early primary, though, it looks like one of those practical bags that earns its place by being easier to use every morning.
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