SwissGear Sion Softside Expandable 21-Inch Review

An excellent value among soft-sided carry-ons, the SwissGear Sion Softside Expandable 21-inch is a solid mid-range carry-on suitcase set to do it all. It can store and organize everything well, resist wandering hands, and keep an easy pace alongside you through all kinds of adventures. It also comes housed in a casual, unassuming design just as well-suited to weekend getaways as it is for cross-country business travel.

Performance Comparison

Capacity

Our testing notes showed the SwissGear Sion weighing 7.3 pounds empty, and our measurements calculated its main storage compartment at 40.5 liters of volume. This is complemented by awesome organizational components to ensure you can store and carry a whole heck of a lot without losing track of any of your most critical day-of incidentals.

You can always choose to disregard any of these helpful assists and just toss your stuff into the generous main compartment and go. Either way, two compression straps inside the heart of the bag will alleviate concerns that your bulky items will dominate the storage area or get tossed about inside the suitcase while you're in motion.

If you do decide to separate a few things out before you zip up, a set of interior mesh pockets — one inside the main opening lid and another accessory-sized option embedded into the bag's midline structure — are a great place to capture everything from shoes to scarves, belts, or electronics. Plus, you'll find a handy removable (and waterproof) toiletry bag tucked inside the main compartment as well, with the option to fasten it to the side of the bag for transit. Two generous exterior pockets and an expendable zipper tool also add to the bag's overall capacity and provide great options for adding last-minute souvenirs or tracking incidentals you'll need to access while heading through airport security or getting checked in at your hotel.

Our 7-day Summertime Getaway packing test only confirmed what we'd already concluded from visual inspection: this bag can fit it all and then some! All items in our test easily found a home within the SwissGear Sion, allowing us to utilize each of its many pockets and functional compression straps to lay out our belongings in a thoughtful and accessible manner. And all without having to tap into the expansion feature. The Bulky Gear packing test revealed pretty much the same thing: its cavernous center can hold an impressive amount even without expansion, and all items fit without great strain (and, again, without the use of the extension zipper).

We were particularly pleased to see high-quality mesh used in the construction of its internal pockets. After multiple rounds of pushing and pulling at cheaper fabric suitcase liners and expecting that material to give way at any moment, it was refreshing to spend time shuffling gear around in a bag that seemed designed to withstand such regular and consistent use. That all said, the SwissGear Sion is a bargain bag and is not on par with the likes of the Travelpro Platinum Elite 21" Expandable Spinner, Briggs & Riley Baseline Essential Spinner, or Eagle Creek Warrior XE 2-Wheel Convertible. These top-end softshells have a very noticeable bump in quality and performance, but they also demand a much higher price tag.

What stood out most to us during testing was just how well organized the SwissGear Sion is for day-to-day travel. It is just SO darn packable. And among a collection of several thoughtfully designed suitcases representing plenty of smart features, that's a pretty notable comparison. This travel-ready softshell is stacked from top to bottom with user-friendly features, including front-flip access, great storage capacity, and easy access compartments in varying — but all useful — sizes positioned both inside and out. Two generous pockets are found on the front of the case, with the top being a bit more shallow and just roomy enough for a phone, charger cords, and travel documents, while a lengthier sleeve sits below to accommodate a book or any extra layers you'll need for your flight. Inside, additional storage tools are available, including a large mesh zip pocket lining the opening lid, a smaller accessory pocket against the inside wall, two compression straps, and a removable toiletry bag that can snap into place when on the go.

Ease of Transport

Although a little heavier than some of the cases in our lineup, three well-padded fabric carry handles — top, side, and bottom — are placed around the exterior of the SwissGear case to enable comfortable hauls. Meanwhile, an extendable roller handle with varying lockable height options presents a highly comfortable and stable control mechanism from which to guide the bag in transit. When it comes to comfort, this case was better underhand than many others in the test suite. Top it off with an expansion zipper for flexibility when collecting souvenirs between destinations, and there is no question why we love the SwissGear Sion.

Its four smooth-riding single-spinner wheels are not perfect but perform well enough to handle most transportation rigors. We rolled our SwissGear Sion on concrete, dirt, grass, and gravel. Its smaller diameter, single-wheel spinners did not handle more aggressive terrains as well as cases like the Osprey Daylite Wheeled Duffel 40 or The North Face Base Camp Rolling Thunder 22, which are known for their large, all-terrain wheels. However, the SwissGear Sion's small, 1.75-inch wheels compared well against other single-wheeled bags of similar quality in our lineup.

Ease of Use of Specific Carry-On Luggage Features

Product	Tracking Ability	Wheel Smoothness	Telescopic Handle Smoothness	Balance
Best	5	5	5	5
Average	3.3	3.4	3.6	3.8
SwissGear Sion Softside	2.5	2.5	3	4
Worst	2	1	2	1.5

During our testing, we felt the SwissGear Sion performed rather well on flatter surfaces like sidewalks and flooring found in airports and bus stations. Although it rolls rather smoothly, the Sion doesn't track as well as we hoped, tending to drift to one side or another, especially during our roll tests, so if a smooth rolling case is a non-negotiable requirement for you, it is probably best to consider bags with larger, double-wheeled spinners like the Samsonite Freeform Spinner or the Away The Carry-On.

Construction Quality

Upon first impression, we thought the SwissGear seemed a bit bloated as if the bag might be trying to distract from lower-grade materials and construction by adding a lot of extra organizational bling. But once we got our hands on the case, we were pleasantly surprised to discover how sturdy it felt underhand and in use. And with each use test performed, this casual soft-sided bag garnered greater appreciation. The thick polyester exterior proved stain and abrasion-resistant. Each single-wheeled spinner rolled smoothly and sat well-protected in its housing, and a push-button locked telescopic handle offered stable control over our rolling movements when in action. Plus, numerous pockets, an expansion panel, and large easy-glide zippers made packing and storage a breeze.

It wasn't until we dove into more intensive durability testing that some questions about the SwissGear Sion's durability came up. Our drop tests resulted in some minor but not inconsequential damage. First, the roller handle started to feel more rattly within its housing, and scratches appeared on the case's plastic exterior features. Additionally, after the three-foot drop, a clicking noise started to develop within one of the spinner wheels, creating intermittent and worrisome sounds when rolling the bag thereafter.

The SwissGear Sion's performance during our water tests was much more favorable. This bag's polyester shell is thinner than the top softshells on our list, so we assumed that it might leak. However, after being drowned in hose water from all sides, we were pleased to find all interior and exterior compartments dry.

Design and Functionality

Thoughtful details and easy-to-use, well-constructed components are what define the SwissGear Sion. And although this case lands toward the top of the pile when it comes to weight, the trade-off is a whole lot of usable extras built into a solid spinner foundation that's ready to roll right alongside you into whatever adventures await. Slightly more casual and even a bit sporty in its style compared to some of the other carry-ons in the test collection, this case does not feel or look high-end. But if a luxury aesthetic is not your goal, you'll find plenty else to keep your attention.

The base is constructed of scuff-resistant polyester fabric that comes in a selection of classic or bold colorways to match your look; however, if you need a broader color palette, check out the rainbow of colors to choose from with the Showkoo Expandable Hardside Set 20". The SwissGear Sion also includes assets such as three well-padded carry-grips, a push-button locked telescoping handle, multiple internal and external pockets, an extension zipper, compression straps, and a removable waterproof toiletry bag, all of which proved particularly handy due to their size, location, and accessibility.

Interestingly, the SwissGear Sion was also among the carry-on bags in our test group advertised at dimensions above U.S. domestic carrier requirements. It's listed as nearly one inch too long and too deep straight out of the box. This seems an odd choice when so many other usability details appear to have been considered with care. But based on a seeming lack of enforcement by airlines and the fact that this case actually does fit into overhead airline compartments with ease, we don't foresee that discrepancy causing too many problems for travelers. But as always, it's worth mentioning for anyone who is risk-averse and wants to be sure they're in full compliance before stepping on the plane. We'd also caution against overstuffing the frontside pockets or employing the bag's expansion feature when traveling by plane, as you may find the overlarge dimensions guarantee the case will no longer be considered a carry-on item.

Should You Buy the SwissGear Sion Softside Expandable 21-Inch?

We are impressed with all that the SwissGear Sion offers for such a reasonable price. Although not the most affordable bag in the bunch, it's still an inexpensive option compared to premium suitcases we've tested and a significant upgrade from bottom-of-the-barrel options we've seen. This means you will land a far more substantial and reliable carry-on with a slew of organizational features designed to make life easier on the go. In our minds, it's a simple equation that works out in your favor, netting you a decent bag even when you don't have the budget to pick up a top performer. We think it could be a good choice for those packing up for a family vacation or heading off on a school trip or even those who travel on business but don't have the need to keep up a particularly polished or formal appearance.

What Other Carry-On Should You Consider?

Are you a pocket lover but concerned this case is just a bit too unwieldy? Perhaps something a bit more streamlined but still feature-filled might suit you better? Have a look at the pricier but higher quality and more durable Travelpro Platinum Elite 21" Expandable Spinner. Or, for a slimmed-down hardshell package with a great price tag, the Samsonite Freeform Spinner is a worthy choice. However, if you prefer the speed and efficiency of being hands-free and would rather skip the landing gear altogether, you may want to check out our review on the best travel backpacks.