Our testers pack carry on cases with 4kg of clothing and check in cases with 15kg clothing and place them on a tilting platform. The suitcases are tilted until they tip. We then record the angle the cases were at when they tipped over; anything over 15 degrees is very good.
Carry on suitcases are loaded with 4kg of clothing and check in suitcases are packed with 15kg of clothing. We then subject our suitcases to 300 rounds of our lift and drop test, then grade the damage. Suitcases with no damage receive 100%. Those with substantial damage (for example, are missing wheels) score 0%.
Our testers conduct several technical tests to assess each suitcase's performance. The performance score is made up of the lift and drop test (60%), stability test (20%), rain test (10%) and puncture test (10%).
We list the recommended retail price where possible for each suitcase as of January 2018. Shop around: in many cases, we found suitcases that were significantly cheaper than the recommended retail price.