Rolling durability test
The suitcases are rolled for a total of 50 kilometres on a rotating drum that simulates a pavement with both smooth surfaces and minor obstacles. The test is carried out at a speed of 2.25 km/h, with the telescopic handle fully extended. Afterwards, the laboratory assesses the suitcases' manoeuvrability and inspects the condition of the wheels and telescopic handles.
Carrying handle durability
A strap is attached to the suitcase's carrying handle. The suitcase is lifted and released, allowing it to fall freely for 10 centimetres before being caught by the strap. The procedure is repeated 1,000 times for each handle – the top handle and the side handle.
Drop test
To assess the impact resistance of the wheels, the suitcases are lifted and dropped from a height of 50 centimetres, landing on all four wheels. Each suitcase is subjected to a total of 3,000 drops.
Shell penetration test
The shell's resistance to penetration is tested using a rounded 5-kilogram weight. The weight is dropped from a height of 2 metres onto the upper corner of the suitcase.
Water resistance
The suitcases are placed upright and exposed to simulated rainfall for 15 minutes. The water spray corresponds to moderate rainfall. Afterwards, the laboratory carries out a visual inspection to determine whether any moisture has penetrated the suitcases.
Ergonomics and handling
The laboratory assesses how ergonomic the suitcases are to manoeuvre on two and four wheels, respectively. The assessment also includes the weight of the suitcases and how well the zippers function.
Scoring and weighting
The results of the individual test categories are rated on a scale from 1 to 10. The scores are combined into an overall rating according to the following weighting:
Weighting
Durability of wheels, telescopic handles and carrying handles: 40%
Impact resistance of shell and wheels: 30%
Ergonomics and handling: 20%
Water resistance: 10%