When it comes to buying a new piece of luggage, there are various factors to take into account. Size is obviously crucial, durability is key if you’re hopping on and off planes, and flexibility in terms of how you can move the bag around is vitally important. For us, on our trip to Japan earlier this year, the latter point was arguably the most important. This is because our trip was going to take us on the subway system of Tokyo, on the bullet train between Tokyo and Kyoto, on narrow pavements around Kyoto, on beach paths in Okinawa and Miyakojima, and on and off various planes.

For us, the solution was simple, and it came in the form of an Osprey. The Osprey Ozone 75 Convertible is possibly one of the most versatile and feature-packed pieces of luggage you will ever encounter. It is packed full of features which helped us hugely during different legs of our Japanese trip, most notably:

• A detachable daypack. We used this during the day in Tokyo and Kyoto to hold drinks, guidebooks, nappies, wipes, and other baby-related paraphernalia! For travelling, it zipped back onto the front of the pack with ease
• A padded laptop sleeve. We used this when travelling around on the train and between accommodation. It kept my laptop safe and also gave us somewhere to lock it away during the day when we went out
• Easy access liquids pocket. This meant going through airport security was quick and easy for us, which was especially important with a toddler in tow

Best of all from our point of view, though, was that this wheeled bag could morph, in mere seconds, into a rucksack, and could also be easily carried like a hold-all, with carry handles on both the top and the side. Whilst the ergonomic T handle, fully extendible, made it easy to wheel along like a normal wheeled bag, when turned into a rucksack, the strap system made it really comfortable on the hips and on the back. We used the wheeled bag option when it wasn’t too busy in the cities, the rucksack option when walking on uneven paths by the beach in Okinawa, and the hold-all option when needing quick lifting and transporting on planes and trains. Having the option to do any of the three was, for us, invaluable.

The capacity is impressive despite space being taken up by the strap system and the T bar. It isn’t huge compared to other wheeled bags that don’t boast such versatility, but it did fit around half of all our luggage for our two-week Japan trip. It also held about a week’s worth of nappies!

The bag retails at around the £240 mark, so this is not a cheap investment to be made lightly. We would also recommend buying the travel cover to keep it secure whilst in transit on planes. The material on the bag itself seems pretty durable, but for the price you’re paying, you really want this extra level of protection.