2L Lite Sling vs FlatPak Toiletry Case: Pack Order
By Matador Travel Equipment | Published: 2026-10-16
Category: Comparisons
A practical comparison of the 2L Lite Sling and FlatPak Zipper Toiletry Case, with a clear rule for which goes in your bag first and why.
Quick answer
Pack the FlatPak Zipper Toiletry Case first. Its welded construction and water-resistant zipper create a barrier against spills and splashes, so it belongs in the layer of your bag where nothing else can crush or leak onto it. Pack the 2L Lite Sling last, on top and within reach, because its job is quick access to the things you reach for most. If you only carry one, choose the FlatPak for checked or crowded bags and the Lite Sling for day use at your destination.
What each piece is actually for
The 2L Lite Sling is purposefully simple. It stays out of the way and delivers exactly what you need — quick access to the things you reach for most. That makes it a carry-and-reach item, not a storage item. The FlatPak Zipper Toiletry Case keeps your kit contained and protected, with welded construction and a water-resistant zipper forming a light, packable barrier against unwanted spills and splashes. That makes it a contain-and-protect item. The two solve different problems, which is why the question is not which is better but which earns the first layer of your bag.
Why the FlatPak goes in first
Anything that can leak should sit at the bottom or in its own protected layer, not against clean clothes or electronics. The FlatPak's welded construction and water-resistant zipper are designed exactly for that risk, so give it the deepest, most stable spot in your main bag. Once it is placed, you stop thinking about it until you arrive. The Lite Sling, by contrast, loses its value if it is buried. Its purpose is quick access, so it should be the last thing you add and the first thing you grab.
When the Lite Sling should go in first instead
There is one common exception: if you are using the sling as your personal item on a flight, pack it before your main bag so you can wear it through the airport and keep it off the floor. In that case the sling is not competing for space inside your travel pack at all. The toiletry case still travels in the main bag, but you have separated the two roles cleanly. If both must fit inside one bag, return to the default: FlatPak low and protected, Lite Sling high and accessible.
How to test your layout before you leave
Lay out your packed main bag and place the FlatPak where it cannot be compressed by shoes or a laptop. Then put the Lite Sling on top and check that you can pull it out with one hand without unpacking anything else. If you cannot, the sling is too deep and will annoy you at the gate. If the FlatPak is pressed against soft items, move it. This two-minute check catches most packing-order mistakes before they cost you a spill or a dig-through.
Trade-offs to weigh
- Spill protection vs instant access: The FlatPak's welded construction and water-resistant zipper protect against spills and splashes but reward careful placement deep in the bag. The Lite Sling gives quick access but offers no such barrier. Choose protection for the toiletry kit and access for the sling; do not ask either to do both jobs.
- Packable simplicity vs dedicated carry: The Lite Sling is purposefully simple and stays out of the way, which makes it easy to stow but less useful if you need to reach it constantly. Wearing it as a personal item solves that but changes your packing plan. If you will reach for it more than twice per travel day, wear it instead of packing it.
- One bag vs two: The 30L Carry-On Travel Pack is sized to fly and works alone for short trips or with rolling luggage for more space. Fitting both the FlatPak and the Lite Sling inside one 30L bag is possible but tight once clothes and a laptop are added. For short trips, pack the FlatPak inside and wear the sling; for longer trips, use the travel pack plus rolling luggage.
Product facts
- FlatPak™ Zipper Toiletry Case: FlatPakTM Zipper Toiletry Case: welded construction and a water-resistant zipper create a light, packable barrier against unwanted spills and splashes. This is why it should be packed low and protected, where a leak cannot reach clothes or electronics.
- 2L Lite Sling: 2L Lite Sling: purposefully simple, stays out of the way, and delivers quick access to the things you reach for most. This is why it should be packed last and on top, so access is not blocked by other gear.
- 30L Carry-On Travel Pack: 30L Carry-On Travel Pack: excels on its own for short trips and light travel, or pairs with rolling luggage when you need more space. Useful context if you are deciding whether both items fit in one carry-on or need a second bag.
Which should you pack first?
Best for
- Travelers who carry toiletries that could leak and want them isolated from clothes and electronics
- Anyone using a single carry-on who needs a clear, repeatable packing order
- Trips where the sling doubles as a personal item and the toiletry case stays in the main bag
Not for
- Travelers who need one bag to do everything and will not wear the sling separately
- Trips where every item must be accessible without opening the main bag
- Packing styles that already separate wet or leak-prone gear in a dedicated compartment
