1 / 7Flight Knight FFK99_BLACK_S Cabin Suitcase, 55 × 40 × 23 cm
Flight Knight FFK99_BLACK_S is a hard-shell cabin suitcase listed at 55 × 40 × 23 cm and 42 litres. It combines eight spinner wheels, a TSA lock and an integrated USB port, but airline cabin limits vary and customer feedback is mixed on telescopic-handle durability.
At a glance
- Listed overall dimensions include the wheels and handle, with a separate body measurement of 47x39x23cm in the airline-compatibility text.
- Eight spinner wheels are listed for manoeuvring, alongside a telescopic handle and carry handle.
- A USB charging port is described with internal storage, but no power bank is stated as included.
- The listing claims compatibility with more than 60 airlines, including easyJet, Lufthansa and Ryanair Priority Boarding.
Often bought together
Pros and cons
Pros
- The listed 42-litre capacity offers substantial cabin-bag storage for its stated size.
- A built-in TSA lock and multiple listed packing compartments add organisation and access features.
- At 2.9 Kilograms as listed, its empty weight is specified for travellers planning their packing allowance.
Cons
- Customer feedback reports mixed durability, including reports of the telescopic handle breaking away from the case.
Technical specifications
15 specifications| Model | FFK99_BLACK_S |
|---|---|
| Size | 55x40x23cm |
| Dimensions | 55L x 40W x 23H centimetres |
| Weight listed | 2.9 Kilograms |
| Capacity | 42 litres |
| Shell | Hard |
|---|---|
| Material | Acrylonitrile Butadiene Styrene (ABS), Polycarbonate (PC) |
| Water resistance listed | Water Resistant |
| Lock | TSA Lock |
| Wheel type | Spinner |
|---|---|
| Number of wheels | 8 |
| Handle | Extendable telescopic handle, carry handle |
| Strap | Adjustable |
| Number of pockets | 1 |
| Other listed features | Shirt Compartment, Shoe Compartment, Telescopic Handle, Wheel, Zip Closure |
What to know before buying
Listing details to confirm
The listing describes 55x40x23cm as compatible with Lufthansa and gives the same dimensions as its maximum size, while airline rules and cabin allowances can vary. Its claims of easyJet and other airline compatibility are not a guarantee of acceptance. Check the applicable airline's current size and allowance before travel. The USB port is described with internal storage, but no included power bank is confirmed. The material field lists both ABS and PC while the feature text calls the shell ABS, so the shell composition is not consistently specified. The feature list says multi-use pockets, while the details field lists one pocket. The separate weight and capacity claims are consistent across the listing.
Who is it for?
A good fit for
- Travellers looking for a 42-litre hard-shell cabin case with spinner wheels and a built-in TSA lock.
- Buyers who value dedicated shirt and shoe compartments and an integrated USB charging port.
Less suited to
- Travellers who need assured acceptance across airlines without checking the specific flight's baggage rules.
- Buyers prioritising consistently positive feedback about telescopic-handle durability.

Customer reviews on Amazon
- 5 stars
68% 68% - 4 stars
17% 17% - 3 stars
7% 7% - 2 stars
2% 2% - 1 star
6% 6%
Customer feedback highlights spaciousness for cabin travel, easy wheeling, light weight, appearance, the lock and overhead-locker fit. These experiences broadly relate to the listed 42-litre capacity, 2.9-kilogram weight, spinner wheels and TSA lock. Durability feedback is mixed, including reports of the telescopic handle breaking away, a relevant concern for frequent travel. Overall ratings lean positive, but they do not establish how the suitcase will perform for an individual buyer.
Positive themes
- Customers describe it as spacious for cabin travel and easy to wheel around airports.
- Customers appreciate its lightweight design and say it fits overhead lockers.
- Customers respond positively to the built-in lock and appearance.
Mixed feedback
- Durability feedback is mixed, with reports of the telescopic handle breaking away from the case.
Frequently asked questions
What are the listed dimensions and capacity?
The suitcase is listed as 55x40x23cm overall, with a 42-litre capacity. The airline-compatibility text separately gives the body as 47x39x23cm.
Does it include a power bank for the USB port?
The listing describes an integrated USB port and internal storage compartment but does not confirm that a power bank is included.
Is it guaranteed to fit every airline's cabin allowance?
No. The listing claims compatibility with over 60 airlines, but cabin size rules vary. Check your airline's current requirements for the specific journey.
What do customers report about durability?
Feedback is mixed on durability, with reports of telescopic handles breaking away from the case. Other reported positives include capacity for cabin travel and ease of wheeling.

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