Sprints Sling It Bag Review: A Running Bag That Doesn’t Bounce
The removable ‘Sayonara Bounce’ strap is the feature that makes this worth calling out – it’s a small design choice generic cross-body bags skip, and it’s the actual answer to the one real complaint runners have about phone bags: that they swing and bounce with every stride.
Who it’s for
I’d point this at runners who are done with a phone belt or armband and want a cross-body option instead. At 8″ x 4.25″ x 1.25″, it’s essentials-only – I wouldn’t expect it to replace a hydration pack on longer, gear-heavy runs. It’s also a reasonable pick for hikers on shorter trails who want quick access to a phone and keys without a full pack, or for travelers who want a slim anti-theft option for a city walk.
What you’re getting
- 8″ x 4.25″ x 1.25″ main compartment with two zippered pockets
- Removable second ‘Sayonara Bounce’ strap to reduce bag movement while running
- Loop for hat storage
- 100% polyester with padded mesh construction
Sizing notes
The bag itself is a fixed size, but the strap setup is where the adjustability lives – the main strap has a 46-inch circumference, which should accommodate most body sizes when worn cross-body, and the second Sayonara Bounce strap can be fully removed or stowed inside the bag when you don’t need the anti-bounce effect (say, for a slow walk rather than a run). If you’re petite, I’d expect the 46-inch main strap to need to be worn higher on the torso to avoid excess slack, since it’s not independently adjustable the way a backpack strap would be.
Materials & care
Polyester and padded mesh are both machine washable on cold, which matters for a bag that’s going to absorb sweat on every run – this isn’t a bag you wipe down occasionally, it’s one you’ll want to actually launder periodically. I’d hang dry rather than tumble dry, since the padded mesh panels can lose their shape under dryer heat the same way a padded gym bag’s foam can.
Against the usual alternatives
Against a running belt or armband, the cross-body design here distributes weight differently – a belt can dig into your waist on longer runs, and an armband restricts phone size and can cut off circulation if worn too tight. This sling bag avoids both issues but introduces the bounce problem that the removable strap is specifically designed to solve. Against a small running backpack or vest, this carries far less – it’s genuinely essentials-only, so if you run with more than a phone, keys, and gels, you’ll outgrow this bag’s capacity quickly.
Is it worth the price
At $38, this costs more than a basic running belt or armband, but I think the price is fair for what’s really a two-part system (the bag plus the specific anti-bounce strap) rather than a single generic pouch. If you’ve already tried cheaper options and the bounce was the specific dealbreaker, I think this is worth the extra cost. If bounce has never bothered you, a cheaper running belt will carry the same essentials for less.
What I like
- The anti-bounce strap is a genuinely useful detail most cross-body bags don’t bother with
- Two zippered pockets keep keys separated from your phone instead of jumbled together
- It’s machine washable, which matters for a bag that’s going to absorb sweat on runs
- The 46-inch adjustable-feeling main strap works across a range of body sizes when worn cross-body
What to know before you buy
- Small capacity by design – essentials only, not a change of clothes or bulkier gear
- One size and strap length, which may not fit every body equally well
- Polyester build is lightweight, not a premium leather or heavy-duty fabric
- Padded mesh needs hang-drying rather than a tumble dryer to keep its shape
Frequently asked questions
Will my phone fit comfortably?
Yes – it’s sized specifically for a phone plus keys and small items like gels, which is its core use case.
Can I fit a large phone in this bag?
The bag is sized for a typical phone, but a very large phone (some plus-size or folding models) may fit snugly – checking the exact dimensions against your phone’s size is worth doing first.
Is this bag unisex?
The design is generally unisex in styling, though the strap length and fit should be checked against your torso size regardless of gender.
Can I remove the bounce-reducing strap if I don’t need it?
Yes, the Sayonara Bounce strap is removable or can be stowed inside the bag when you’re not running.
Is it machine washable?
Yes, on cold – I’d hang dry rather than tumble dry to protect the padded mesh panels.
Does it come in different colors?
Running gear brands typically offer a few colorways per bag style, so checking the current listing for available colors beyond what’s pictured is worth a quick look.
Is the main strap adjustable in length?
The listing specifies a 46-inch circumference for the main strap, which reads as a fixed length rather than independently adjustable, so I’d confirm it suits your body size before ordering if you’re notably petite or tall.
Is this bag reflective for night running?
The listing doesn’t mention reflective elements, so if night visibility is a priority for your running routine, I’d add a separate reflective accessory or clip-on light rather than relying on the bag itself.
Is there a smaller version for kids or petite runners?
The listing doesn’t mention a separate petite or youth sizing option, so I’d rely on the stated strap circumference to judge fit for a smaller frame rather than assuming a dedicated smaller version exists.
Can I use this bag for walking instead of running?
Yes, and arguably it works even better for walking since bounce is less of an issue at walking speed – you’d mostly be using it then for the organized pocket layout and the convenience of not carrying a phone in your hand.
How does the padded mesh feel against sweaty skin?
Padded mesh is generally designed to stay breathable even against sweat, which matters more here than on a non-athletic bag, since this is specifically built to be worn directly against the body during exercise rather than just carried.
Is there a larger version for carrying more items?
This specific model is built small by design for the bounce-free running use case – if you need more capacity, I’d look at a different running bag category entirely rather than expect a larger version of this exact bounce-reducing design.
If this isn’t quite right
If you don’t need the anti-bounce feature specifically, a basic running belt or armband will carry similar essentials for less money. If you want more capacity for longer runs, a small running vest with water bottle storage is a better fit than any cross-body sling bag, including this one.
Should you buy it
For runners specifically annoyed by a bouncing bag, I think this solves that one problem well. If you need to carry more than phone-and-keys essentials, I’d look at a hydration vest instead – this isn’t trying to be that, and it shouldn’t be judged as if it were.
Amazon product listing – I have not personally worn or tested this item, and I say so plainly rather than imply otherwise.
Priya Nathan
Priya spent years in apparel buying and merchandising for a multi-brand retailer before moving into editorial work. She focuses on fit, fabric and construction quality across everyday wear, activewear and accessories, reading past marketing copy to the details that affect how a garment actually wears and holds up.
