Ryanair underseat cabin bag 40 x 30 x 20 cm with wet pocket, shoe compartment and expansion

What it is and why people buy it

This for Ryanair Airlines underseat cabin bag is a weekend-style holdall designed to sit comfortably within the airline’s 40 x 30 x 20 cm hand baggage footprint, then flex when you want a bit more room. On paper, it’s built for short trips where you still want decent organisation: clothes, toiletries, and the usual “misc” items that never seem to fit neatly.

The stand-out angle here is practical separation. It includes a built-in waterproof wet pocket/section, so you can keep damp items away from dry ones. That’s the sort of detail that matters when you’ve got wet swim kit, a towel, or even something that simply hasn’t fully dried yet.

Key features that affect everyday use

Where this bag feels more thought-through than basic gym totes is in the structure and compartment setup. You get: - A wet pocket made from a high density water-repellent material, intended to separate dry and wet items. - A separate shoe compartment, so shoes (even if they’re a bit dirty) don’t end up rubbing against clean clothes. - Multiple organisation pockets, including 6 internal and 3 external pockets. That’s useful if you dislike digging around for your cosmetics bag or chargers at the bottom.

It’s also described as having an expansion option. Before expansion the size is 40 x 30 x 20 cm, and after expansion you add an additional shoe compartment. That’s a bit unusual (expansion isn’t just “more space”), but it does line up with what many travellers actually need: space for shoes without sacrificing the rest of the bag.

The capacity detail (what it implies)

The bag is listed as having 20L capacity and able to accommodate around 4 to 6 summer clothes, plus cosmetics and toiletries. In real terms, it sounds like a “short break” pack size rather than something you’ll cram for a longer trip. If you’re travelling with heavier layers or lots of bulk items, you may find the bag becomes tight quickly.

Dry-and-wet separation: useful, but not magic

The wet pocket is the clever part of the design. If you’re carrying anything damp—towel, wet clothes, or swim gear—having a dedicated place helps keep things more contained.

That said, it’s still a soft holdall. So if you’re expecting a fully leakproof, hard-shell solution for heavy liquids, you may want to temper expectations. A waterproof/water-repellent section helps with separation, but your packing style still matters.

A practical example: imagine landing at your destination, then realising your swimwear is damp. You can move it straight into the wet section instead of trying to “air it out” inside your main compartment while everything else stays clean.

Shoe compartment and organisation: the day-to-day win

Shoes separate compartments can be a bit of a gimmick in cheaper bags, but here it’s positioned as a core feature. Because the bag has a dedicated shoe area, you’re less likely to end up with dirty trainers/boots against clothing.

The pocket count also suggests it’s meant for structured packing. With 6 internal and 3 external organisational pockets, you’re more likely to find what you need without turning the bag upside down. This matters on travel days, when time is short and you’re juggling boarding, transport, and luggage checks.

Size and airline fit: the part you should double-check

The base size is stated as 40 x 30 x 20 cm, aligning with the Ryanair hand luggage range for that footprint. The bag is also described as stowable under the seat and in the overhead compartment.

However, there’s one limitation to keep in mind: expansion changes the layout, and the product description states the expansion adds an additional shoe compartment. If airline rules on size are strict at the gate, you’ll want to be cautious about how full you pack when expanded.

Who it suits (and who should think twice)

It makes sense if you’re planning a weekend overnight trip with a mix of dry and potentially damp items, and you want your shoes handled separately. It’s also framed as a gym and sports holdall for indoor/outdoor activities—so if you cycle between work, the gym, and a short getaway, this style of bag fits that lifestyle.

It may not be the best match if you regularly travel with larger, heavier loads or need maximum capacity for long stays. At 20L and with a compact cabin footprint, it’s more of a “light pack” companion. If you’re the type who brings multiple outfit changes plus bulk toiletries, you might find it stays in the “pretty manageable, but not roomy” zone.

Final verdict

If you want a Ryanair underseat cabin bag that leans into organisation—especially a wet pocket and a separate shoe compartment—this one looks built for practical short trips and day-to-day gym-to-travel use. The 40 x 30 x 20 cm starting size is the key selling point, with expansion behaving more like a layout change than a “carry more of everything” feature.

Should you buy it? Consider it if your packing routine includes wet items or you hate mixing shoes with clean clothes. You may want to skip it if you need a larger capacity, or if you prefer simpler bags without an expansion feature you might accidentally pack beyond what you intended.

Quick FAQ

Is the bag the right size for Ryanair hand luggage?

The base size is stated as 40 x 30 x 20 cm, which is said to correspond to Ryanair’s hand luggage range. As always, it’s worth checking airline rules for your specific flight and ensuring you don’t overfill—especially if you use the expansion.

What is the wet pocket for?

It’s described as a waterproof wet bag using high density water-repellent material, intended to separate wet items from dry ones.

Does it have somewhere to put shoes?

Yes, there is a separate shoe compartment. The description also mentions that after expansion an additional shoe compartment will be added.

How much can it hold?

It’s listed as 20L capacity and is described as able to accommodate about 4 to 6 summer clothes plus cosmetics and toiletries for a short trip.

Where can you store it on the plane?

It’s described as stowable under the seat and in the overhead compartment.