Osprey Ozone Exp Carry On Hardside 4W in the colour Black is a lightweight, expandable hard-shell trolley case designed for travellers who want to make the most of their carry-on allowance. The compact dimensions meet the stricter requirements of many international airlines, and the case can be expanded by 5 cm to provide 10 litres of additional packing volume when needed. The base capacity is 34 litres, and the shell is made from 63% recycled polycarbonate.

The ZeroLiner™ interior is designed to use space efficiently, reduce unnecessary weight, and make the case easy to wipe clean. Zip-fastened dividers and integrated mesh pockets make it straightforward to organise luggage, and the dividers can be rolled away when not needed.

Four double 60 mm Hinomoto Silent Run wheels rotate 360° for smooth, quiet manoeuvrability and good stability. The telescoping handle features dual aluminium tubes and can be adjusted to two heights. The design also makes it easy to attach compatible bags and rucksacks using a luggage-handle pass-through.

An integrated TSA-approved Travel Sentry® lock keeps the contents secure during travel, and heavy-duty YKK® EYL zippers in size 10 have been chosen for long service life and reliable use. The case is covered by Osprey's All Mighty Guarantee™.