Choosing the right suitcase seems simple until you’re faced with a row of options, wondering whether you need a hardside or softside case, a carry-on or something larger. The wrong choice can mean extra airline fees, hassle at security, or even a cracked case after a rough flight. This guide breaks down exactly what to look for, helping you choose a suitcase that suits your travels and stands up to the journey.
1. Suitcase Types: Hardside and Softside Explained
Hardside suitcases feature rigid shells made from materials such as polycarbonate or ABS. They offer better protection against crushing and moisture, withstand impacts from rough baggage handling, and many modern designs remain surprisingly lightweight.
Softside suitcases have fabric exteriors, typically made from nylon or polyester. Their flexible construction makes them easier to squeeze into tight overhead compartments, while external pockets provide convenient access to travel essentials.
- Choose hardside for fragile items, electronics, or frequent air travel.
- Choose softside for greater flexibility, extra pockets, and easier storage.
2. Suitcase Categories by Size: Carry-On, Checked, and Large
Suitcases generally fall into three size categories, each suited to different trip lengths:
| Category | Typical Height | Best For |
| Carry-On | 20-22 inches | Weekend trips, 1-3 days. |
| Checked (Medium) | 24-26 inches | 4-7 day trips. |
| Large | 28-32 inches | Extended trips, family travel. |
A large hard-shell case in this upper size range is a strong pick when you’re packing for a full week or travelling with family, since the extra room absorbs bulky items without forcing you to leave things behind.
3. Suitcase Size and Airline Baggage Rules
Airlines enforce strict size limits, and exceeding them means fees or a forced gate check. Always confirm limits before flying, since they vary by carrier and route.
Typical carry-on limits:
- Most domestic airlines: around 22 x 14 x 9 inches.
- International carriers often allow smaller dimensions.
- Weight limits for carry-ons: typically 35-40 lbs.
Tip: Measure your suitcase including wheels and handles, since some airlines count the full exterior dimensions, not just the shell. Anything in the 30-inch range is generally built for checked baggage, not carry-on.
4. Capacity: How Much Space You Actually Need
Capacity is measured in litres, and it directly affects how much you can pack without forcing zips or overloading straps.
| Trip Length | Suggested Capacity |
| Weekend (1-3 days) | 30-45L |
| One Week | 45-70L |
| Extended Trips | 70-100L+ |
At the top of that range, a suitcase near the 95-100L mark gives enough room for a full week of clothing plus extra space for gear or souvenirs, which is where large hard-shell luggage tends to shine.
5. Suitcase Materials Compared
The material of your suitcase affects its weight, durability, and how well it holds up over years of travel.
- Polycarbonate: Highly durable and flexible enough to resist cracking, while remaining reasonably lightweight.
- ABS: Lightweight and increasingly available with textured, scratch-resistant finishes that hide scuffs and wear better than older glossy ABS shells.
- Aluminium: Extremely durable and premium-looking, but heavier and more prone to denting.
- Nylon/Polyester: Lightweight and flexible, making these materials ideal for softside suitcases, although they offer less protection against crushing.
For most travellers, a well-made ABS hardside suitcase offers a good balance of weight, durability, and value. It is light enough to help keep within baggage limits while being tough enough to handle repeated baggage handling.
6. Wheels and Handles: Getting Around with Ease
Wheels and handles have a big impact on how easily you can move your suitcase through airports, train stations, and car parks.
- 4-wheel spinners: These rotate 360 degrees, allowing the case to roll in any direction and reducing strain on your arm, particularly when carrying a larger or heavier suitcase.
- 2-wheel suitcases: These tend to be more stable on uneven or outdoor surfaces but require more effort to pull.
- Telescopic handles: Ideally made from aluminium alloy, they should extend smoothly and lock securely at a comfortable height.
- Top and side grab handles: These make it much easier to lift your suitcase into overhead compartments or car boots, especially with larger cases.
7. Locks and Security Features
A TSA-approved lock is one of the most overlooked features until you’re standing at customs. These locks let security agents open your bag for inspection without cutting the lock or damaging the zip.
Look for:
- Built-in 3-digit combination locks (no separate key to lose).
- Zips that pair well with the lock mechanism.
- Lockable compartments if you’re carrying valuables.
A built-in TSA lock is close to a non-negotiable feature on any large suitcase you plan to check on international routes.
8. Interior Organization and Packing Features
The interior layout can make the difference between a suitcase that is easy to organise and one that becomes a jumbled mess halfway through your trip.
- Elastic cross-straps: Keep folded clothes securely in place and prevent them from shifting during travel.
- Zipped mesh compartments: Ideal for organising smaller items while keeping everything visible and easy to find.
- Separate accessory pockets: Useful for storing toiletries, chargers, electronics, and other essentials.
- Compression features: Help maximise available space, allowing you to pack more without overstuffing your suitcase.
9. Suitcase Weight and Why It Matters
Every pound your empty suitcase weighs is weight you cannot use for your actual belongings. Airlines weigh the entire suitcase, not just the items inside it.
Rule of thumb: Aim for a carry-on that weighs under 7–8 lb when empty, while a large checked suitcase should ideally stay below 10–12 lb. This leaves more of your baggage allowance available for the items you actually want to pack.
Common Mistakes to Avoid When Buying a Suitcase
- Buying based on appearance alone without considering durability and build quality.
- Ignoring airline size restrictions before purchasing a suitcase.
- Choosing a case that is too small for your typical travel needs.
- Skipping checks on wheels and handles, either in person or by reading reliable reviews.
- Overlooking the empty weight, which can quickly eat into your airline baggage allowance.
Choosing the right Suitcase can make every journey easier, from packing at home to navigating busy airports and arriving with your belongings safely intact. Whether you’re comparing options from Aosom or elsewhere, think about how, where, and how often you travel before making your choice. A little research can help you avoid unnecessary costs and find luggage you can rely on trip after trip.
FAQs
1. Are four-wheel suitcases better than two-wheel suitcases?
Four-wheel suitcases can be easier to move through airports because they can roll in multiple directions. Two-wheel designs may perform better over uneven pavements and rough surfaces. Your usual travel environment is an important factor when choosing between them.
2. How can I make my suitcase easier to identify?
Choosing a distinctive colour or adding a visible luggage tag can make your suitcase easier to recognise at baggage collection. You can also use a removable luggage strap or identifier. Avoid displaying unnecessary personal information on the outside of your luggage.
3. What should I look for in a lightweight suitcase?
A lightweight suitcase should balance low weight with adequate durability and storage space. Check the empty suitcase weight before buying, as this affects how much you can pack within airline limits. Strong wheels and handles are also important for regular travel.