This can hold 33.04 litres, so you have space for the essentials. It has a well-balanced construction with four wheels and it weighs just 2.7 kg, so it's a light little bag.
From Amazon
DELSEY PARIS - BELMONT PLUS -Extendable Rigid Cabin Suitcase - 55x35x27cm - 39 liters - S - Goldange tangerine
The product is available from £81.51 at international stores.