Teal 20L Foldable Underseat Travel Duffel Bag (40x30x20cm) for Ryanair cabin bags

The essentials

If you’re trying to keep travel costs down on short trips, a properly sized underseat cabin bag is one of those small choices that makes a big difference. This Ryanair underseat foldable travel duffel is built around the 40x30x20cm footprint that matches the newer Ryanair Airlines under-seat allowance mentioned in the product description. The idea is simple: keep your bag where it belongs (under the seat) so you can avoid needing to pay for extra baggage.

It’s a duffel-style holdall with a foldable, soft structure, designed to be practical for overnight and “weekender” packing. On paper, it ticks the boxes for people who want something easy to carry, can handle everyday travel wear, and can be used for more than just one holiday. Still, it’s not a rigid suitcase replacement—so if you like hard-sided protection for your kit, you may find this approach a little too flexible.

Where it shines

The most convincing part of this bag is the positioning: it’s specifically marketed for Ryanair cabin bag sizing (the listing references small underseat dimensions of 40x20x25cm for older sizing and 40x30x20cm for newer Ryanair Airlines). If you’re the type who packs light and wants to keep everything contained, the underseat plan is exactly the right mindset.

The fabric choice is also framed as a step up. Instead of a thin “plastic-like” feel, the description says it uses thick nylon-like fabric and is water-resistant, which should help with the sort of drizzle and damp conditions you can get around terminals. Another thoughtful detail is that the bag is described as holding its shape when empty, so you’re less likely to wrestle with a floppy base when you’re boarding or placing it under the seat.

A small but useful convenience is the carrying setup. The listing mentions a strap/pouch that allows the duffel to fit over the handle of a common suitcase. That matters in real life: you don’t want to carry a bag in one hand and fight with your case in the other.

And it’s meant to be versatile beyond flights: hospital bag, overnight, weekender, garment bag, sports/gym use, yoga, weekend shopping, camping and picnic. In other words, it’s aimed at people who want one bag that can do multiple roles, not just one strict airline purpose.

What you’ll notice day to day

With a foldable holdall, the experience is more about how easy it is to live with than how “premium” it looks. When the bag is empty, the description promises it can hold its shape, so it should sit more neatly when you’re packing and unpacking.

In use, you can imagine the routine: pack toiletries and a change of clothes, zip it up, then during boarding place it under the seat without needing to find overhead bin space. Once you arrive, it can double as a sports bag—trainers, towel, and a spare layer—rather than being “holiday-only” gear.

That said, it’s worth being realistic. A soft duffel won’t protect fragile items the way a structured case would. If you pack anything that really needs rigid cushioning, you may want to add your own internal padding.

Key takeaways before you buy

The essentials

Before committing, it helps to double-check whether this bag’s stated size lines up with your exact Ryanair route and your personal packing habits. Airlines can be strict about dimensions and how bags are placed, and soft bags can behave differently depending on how full they are.

Also, look at how you’ll carry it. The over-handle suitcase strap is handy, but your comfort may depend on your typical suitcase type and how you load the bag. If you’re expecting heavy, fully-packed loads for long walks, you’ll want to consider that a duffel bag is more “grab-and-go” than “load-bearing luggage”.

Finally, confirm the fabric and water-resistant claim meets your expectations. It’s described as water-resistant to protect your items from rain or wet conditions, but “water-resistant” isn’t the same as fully waterproof.

Tech specs

• Name: Teal 20L Foldable Underseat Travel Duffel Bag (Ryanair cabin bag sizing)
• Type: Underseat foldable travel duffel / holdall tote
• Format: Foldable
• Size: 40x30x20cm
• Capacity: 20L
• Colour: Teal

Mini FAQ

When is an underseat duffel like this a good idea?

It makes sense if you’re travelling with lighter loads and you want your bag to fit under the seat rather than relying on overhead space.

Does it definitely fit Ryanair cabin bag rules?

The listing is explicit about matching Ryanair under-seat dimensions (including the newer 40x30x20cm figure). That said, it’s still wise to check your exact Ryanair guidance and how full the bag will be.

Is it suitable for everyday use?

Yes, the description positions it for gym, yoga, weekender trips, and even errands like weekend shopping, not just flights.

Is the fabric waterproof?

The product description says water-resistant. If you expect heavy rain exposure, you may want to pack essentials in an extra liner.

Final verdict

Is it worth it?

Worth considering if you want an underseat Ryanair-focused travel bag with a foldable duffel design, water-resistant nylon-like fabric, and a setup that can work over a suitcase handle. It feels aimed at practical short trips and multi-purpose day-to-day use.

You may want to skip it if you need rigid protection for delicate items, or if you tend to overpack and end up with a fuller, puffier bag—soft bags can become harder to fit neatly under strict underseat limits.