There is a moment every traveller knows: your suitcase wobbles down the check-in belt, pushes through the rubber flaps and vanishes. For the next few hours it lives a life you will never see, and for a lot of luggage that life is short and rough.
Airlines handle billions of bags a year, and the system that moves them is built around one goal: speed. Not gentleness, speed. A bag at a major hub can travel several kilometres of conveyor, pass through automated sorters at running pace, be swung across a loading cart and spend the flight under a stack of other bags. Most of the time everything arrives fine. When a suitcase comes back cracked, bent or soaked, it rarely happened by accident. It happened within the system's design tolerance, which assumes your bag can take it. The only question is whether that assumption is true for your bag.
This guide, updated for the 2026/27 travel season, walks through the eight things that really happen to a checked suitcase between the check-in desk and the carousel, and then shows what people who fly with expensive equipment every week do about it. It also includes a model-by-model table so you can match a Peli case to the way you actually fly.
Part 1: The mechanical gauntlet
1. The throw: nobody lowers a bag gently
Ramp agents work against the clock. A short-haul turnaround can leave a crew well under an hour to unload and reload an entire aircraft, and at that pace bags are not placed, they are swung, slid and thrown. From the container door to the cart, from the cart to the belt loader, from the belt into the hold: every transfer is a potential drop, and drops onto metal or concrete are routine. A soft duffel passes the shock on to its contents. A thin glossy shell takes it as a crack that starts at a corner and grows with every following trip. This is the most common way luggage dies: not one dramatic event, but the hundredth ordinary throw.
2. High-speed sorting: kilometres of belts, none of them soft
At a large hub your bag rides an automated sorting system made of conveyor junctions, steep chutes, pushers and diverter arms that shove it sideways onto the correct line at full belt speed. Bags collide with guide rails, with chute walls and with each other, many times per journey. The system reads the barcode, not the "fragile" sticker. If a bag jams, it is pulled free by whatever part a handler can grab, usually a handle, a strap or a wheel. Which brings us to the next hazard.
3. The snag: how straps and wheels become hooks
Dangling straps, loose zip pullers, external pockets and protruding spinner wheels are all snag points, and sorting equipment is full of places for them to catch. A caught strap can rip a seam open, and a caught wheel can be torn out of its housing. Airlines often treat protruding parts as excluded from damage claims, so the loss lands on you. That is why professional cases use flush latches, recessed hardware and nothing that dangles. If your bag has straps you are not using, remove them before check-in. We cover more quiet money-savers like this in our guide to 10 packing mistakes that cost you money.
4. The crush: your bag at the bottom of the stack
Inside a baggage container or a loose-loaded hold, bags are packed to fill every centimetre, and someone's suitcase is always at the bottom. A pile of bags at 20 to 25 kg each can put well over a hundred kilograms of static load on the one underneath, before you add the forces of taxiing, turbulence and landing. Soft luggage deforms and passes the pressure straight into your belongings. Cheap hard shells flex until a latch pops or a seam splits. A genuinely crushproof case simply does not care where in the stack it ends up.
Part 2: The environment
5. Rain on the tarmac: the hazard nobody claims for
Your bag can sit on an open cart or belt loader in pouring rain for many minutes during loading, and water damage to contents is one of the hardest claims to win. Airlines argue that the bag itself was not waterproof, and they are usually right. A "water-resistant" zip is a marketing phrase, because water follows the zip line into the bag within seconds of real rain. Luggage that truly shrugs this off closes on a full-perimeter rubber gasket, the way diving equipment does. Everything else is gambling on the weather at two airports at once, which matters even more in the wetter months of the 2026/27 season.
6. Temperature swings: from summer tarmac to altitude
A bag loaded on a hot summer ramp, or on a frozen winter one, then flown at altitude, can see a swing of tens of degrees within a single day. Cheap plastics turn brittle in the cold and soft in the heat, which is exactly when they meet hazards 1 to 4. Materials matter here: we compared how different shells hold up in our ranking of the toughest suitcases for air travel. A shell that survives a drop test at room temperature can behave very differently after a few hours in a cold hold.
7. Abrasion: death by a thousand slides
Every chute, cart bed and container floor sands away at your luggage. Fabric bags wear through at the corners, and painted or glossy shells lose their finish within a few trips and then start losing material. This is cosmetic right up until the moment it is not, because a worn corner is a weakened corner. Luggage designed for professional abuse uses thick, through-coloured polymer so that years of scuffs stay cosmetic. Wondering whether fabric or shell suits your travel style better overall? We compared them in hard or soft luggage: what to choose.
8. The tight connection: when the whole system speeds up
Everything above gets worse when your layover is short. Transfer bags are the ones moved fastest across the ramp, tossed between carts and squeezed into containers last, which also makes them the most likely to miss the onward flight. If that happens, know your rights: our step-by-step guide on how to file a claim for lost luggage covers deadlines, forms and compensation. The honest summary of this whole section is simple: the system will not adapt to your suitcase, so your suitcase has to be ready for the system.
What frequent flyers with expensive gear actually do
Talk to photographers, broadcast crews, engineers and touring musicians, people whose luggage carries their livelihood, and you will hear two consistent strategies.
Strategy one: do not check it at all. Everything irreplaceable travels in the cabin, in a carry-on tough enough that even a gate-check surprise (it happens on full flights) is a non-event. This is the niche where Peli cases became a default choice for professionals: crushproof shells, watertight O-ring seals, double-throw latches and, on the hard cases, a pressure equalization valve for altitude. If your carry-on can survive the hold, checked-bag roulette stops being scary. Just make sure the contents are cabin-legal first. Here is what not to pack in your carry-on.
Carry-ons built to survive the hold anyway
Peli Air 1535 Carry-On Case: made from Peli's HPX² polymer, which Peli rates as up to 40% lighter than comparable hard cases, and certified IP67 and MIL-SPEC. It has a full-perimeter O-ring seal, an automatic pressure equalization valve, a retractable trolley handle and four interior options (No Foam, Foam, Padded Dividers or TrekPak).
Peli 1510 Protector Carry-On Case: the long-serving cabin classic. Exterior 56.1 x 35.9 x 22.9 cm, interior 50.2 x 27.9 x 19.3 cm, watertight O-ring seal, pressure valve and three interior options. Always check your own airline's cabin limits before you fly.
Peli ATX HC22 Carry-On Hard Case: a Peli Armor shell with TSA locking latches instead of a zipper, four spinner wheels and a removable liner. Exterior 55.9 x 35.6 x 23.1 cm, 30 L, 4.8 kg empty (5.9 kg with liner).
Peli Aegis HY22 Rolling Travel Duffel: a hybrid for people who prefer soft luggage. A moulded EVA front shell with 500D Cordura fabric, 47 L, 3.32 kg and a 5-year warranty. It is water-resistant rather than waterproof, so pack water-sensitive items in a pouch.
Strategy two: if it must fly in the hold, check it in a case built for the hold. Professionals do not check fashion luggage. They check cases engineered for exactly the abuse described above: thick impact-absorbing shells, gasket seals against tarmac rain, latches that stay shut at the bottom of the stack and enough internal volume for a full trip. For anyone flying with more than a weekend's worth of gear, a hold-rated case turns hazards 1 to 8 from threats into trivia.
If you must check it, check it in one of these
Peli Air 1615 Checked Baggage: HPX² polymer, IP67 and MIL-SPEC, O-ring seal, pressure valve, padlock protectors and quiet stainless-steel bearing wheels. Available in Black, Yellow, Orange, Silver and French Blue, which is easy to spot on the carousel.
Peli Air 1615 TRVL Suitcase with Laptop Pocket: the same platform with travel extras, including TSA-approved locks, an integrated lid organizer and removable fabric pouches for clothes. Sized to the upper limit for checked baggage on most airlines, so confirm with your carrier.
Peli 1560 Protector Case: a medium wheeled hard case that is watertight, crushproof and dustproof, with a pressure valve, double-throw latches with padlock protectors and a retractable trolley handle. Available in black, yellow, orange and desert tan.
Peli 1620 Protector Case: the large wheeled option, made in Germany, with a perimeter O-ring seal, pressure valve and a Four-Level Pick N Pluck foam option for custom-fit cavities.
Which model for which trip
| Model | Travels as | Key figures | Best for |
|---|---|---|---|
| Peli Air 1535 | Carry-on | IP67, MIL-SPEC, HPX² polymer | Photographers and crews who never check gear |
| Peli 1510 Protector | Carry-on | 56.1 x 35.9 x 22.9 cm | Laptops, instruments and kit in the overhead bin |
| Peli ATX HC22 | Carry-on | 30 L, 4.8 kg empty | Business trips and clothing plus electronics |
| Peli Aegis HY22 | Carry-on | 47 L, 3.32 kg | Soft-luggage fans who want impact protection |
| Peli Air 1615 | Checked | IP67, MIL-SPEC, HPX² polymer | Camera, drone and dive gear in the hold |
| Peli Air 1615 TRVL | Checked | TSA locks, lid organizer | Longer trips with a laptop and clothes |
| Peli 1560 Protector | Checked | Medium wheeled hard case | Equipment kits and field gear |
| Peli 1620 Protector | Checked | Large wheeled hard case | Broadcast, survey and expedition loads |
Survival checklist: prepare your bag like a pro
- Remove everything that dangles: shoulder straps, luggage tags on long loops and carabiners are all snags waiting to happen.
- Assume rain: anything water-sensitive goes in a sealed pouch, or in a gasket-sealed case that makes the question irrelevant.
- Pack for the crush: keep fragile items away from the shell walls and assume your bag travels at the bottom of the stack, because sometimes it will.
- Photograph your bag and contents at check-in: thirty seconds now is priceless during a damage claim later.
- Report damage before leaving the airport: most airlines sharply limit claims reported after you exit the baggage hall.
- Keep valuables and electronics in the cabin: airline liability for checked valuables is minimal and often excluded entirely.
- Know the size and weight rules before you fly: a bag forced into gate-check at the last minute skips even the normal loading care. Our guide on how airlines measure baggage tells you what to expect, and if you fly budget carriers, so does our low-cost packing guide.
Frequently asked questions
Is a hard-shell suitcase always safer than a soft one?
No. A thin hard shell can crack or pop a latch under a crush load, while a well-built soft or hybrid bag can absorb impacts. What matters is wall thickness, the quality of the closure and whether anything protrudes. A thick, gasket-sealed polymer case is a different class of product from a thin travel shell.
Will a waterproof case protect my gear if my bag sits in the rain?
A case with a full-perimeter O-ring seal and an IP67 rating, such as the Peli Air 1535 or Air 1615, is designed to keep water out, including short immersion. Bags that are only water-resistant, including the Aegis HY22, will slow water down but not stop it, so line them with a sealed pouch.
Should I put a lock on my checked case?
Use a lock that security staff can open and relock. The Peli Air 1615 TRVL and the ATX HC22 include TSA-approved locking, and the Protector and Air cases have stainless-steel padlock protectors for your own lock. Check the rules for your destination before you fly.
What should I do if my case arrives damaged?
Report it to the airline at the baggage desk before you leave the airport, photograph the damage and keep your boarding pass and baggage tag. Our guide on how to file a claim for lost luggage explains the process, and the same documentation helps for damage.
The bottom line
None of the eight hazards above is an accident or an exception. They are the normal operating conditions of air travel, repeated on every flight. The baggage system is not gentle and will not become gentle, because it was designed around throughput rather than fragile luggage.
That reframes the question of what luggage is worth. A suitcase is not an accessory, it is the only thing standing between the system described above and everything you packed. Buy one engineered for these exact conditions and the invisible part of your journey becomes boring, which is what you want. We ran the long-term numbers in 5 reasons why investing in a durable suitcase is worth it, and after reading what happens behind the rubber flaps, you can probably guess the conclusion.
