Cabin Baggage Rules 2026: The Perfect Free Underseater

Introduction: As we fly into 2026, strict cabin luggage policies have become the new standard across Europe. Airlines are now rigorously enforcing "Personal Item" size limits to minimize delays and maximize overhead bin space.

For travelers, this means one thing: the days of sneaking in oversized backpacks are over. To avoid steep gate fees, your bag must fit effortlessly under the seat in front of you.

The 2026 Standard: What fits?

Major low-cost carriers and premium airlines alike have aligned on a stricter maximum size for the free personal item:

40 x 30 x 20 cm

Note: If your bag exceeds this 20 cm depth, you risk paying up to €80 at the gate. Some airlines (like SAS and KLM) are even moving towards a stricter 15 cm depth limit.

Why FRENKY is the Ultimate 2026 Travel Hack

We designed the FRENKY Underseater to future-proof your travel. While our bag offers a spacious 20 cm depth for packing, it features a unique mechanical smart compression system.

• Adaptable Size: By simply tightening the integrated side buckles, you mechanically compress the bag’s depth from 20 cm down to 15 cm.
• Guaranteed Fit: This ensures your FRENKY slides strictly into airline sizers and fits smoothly under any seat, even on strict flights.
• Zero Fees: Travel in 2026 with peace of mind, knowing your bag always qualifies as a "free personal item."

Airline Compatibility Check (2026 Update)

Don't stress about changing policies. FRENKY is designed to fly with you on all major carriers.

Airline	Max. Free Bag Size	FRENKY Status
Ryanair	40 x 30 x 20 cm	✅ Perfect Match (Use full space!)
Transavia	40 x 30 x 20 cm	✅ Perfect Match
Wizz Air	40 x 30 x 20 cm	✅ Perfect Match
EasyJet	45 x 36 x 20 cm	✅ Fits Easily
Vueling	40 x 20 x 30 cm	✅ Fits (Under seat)
TUI fly	40 x 30 x 20 cm	✅ Perfect Match
SAS / KLM*	40 x 30 x 15 cm	🚀 Fits (Tighten buckles to 15cm)
Eurowings	40 x 30 x 25 cm	✅ Fits Easily

*For strict airlines like SAS or KLM, simply use the compression buckles to flatten the bag.

Pack 50% More with Vacuum Technology

Meeting strict size rules doesn't mean you have to pack less. The FRENKY Underseater features a built-in vacuum compression compartment.

1. Pack your clothes in the vacuum layer.
2. Press out the air (no vacuum cleaner needed!).
3. Gain up to 50% extra packing space.

This allows you to bring 5-7 days' worth of outfits while keeping the bag compact enough for under-seat storage.

Travel Sustainably with FRENKY

FRENKY is crafted from recycled PET materials, reducing plastic waste without compromising on durability or a premium feel.