Measure your model, not just the screen
Running vest for iPhone
iPhone models differ in height, width and thickness, and cases change those measurements. Use the Défi chest-pocket dimensions as a check rather than assuming every iPhone will fit.
Purchase, availability and delivery details are shown on Amazon UK.

Défi running vest · UK guide
running vest for iPhone
Guide / 01
Measure with the case fitted
The chest pocket measures 20 × 13cm. Measure the iPhone with its everyday case attached and account for camera protection, grips or wallet accessories before comparing.
The opening and pocket shape matter as well as the device’s headline dimensions. If your set-up is close to the limit, confirm details on the Amazon listing rather than forcing the phone into the pocket.
Guide / 02
Separate the phone from keys
The vest has one zipped chest pocket and two zipped shoulder pockets measuring 10 × 5cm each. Use the smaller pockets for compact essentials so keys do not sit next to the phone screen.
The chest pocket is water-resistant, but it is not a waterproof phone case. Protect an iPhone separately in wet conditions.
Guide / 03
Check the fit across your running layers
The adjustable waist belt covers 26–40 inches. Try the vest over your planned running top or jacket, zip the pocket and move through a short test run to check comfort.
This page is about fit, not an Apple accessory certification. The vest is a general phone carrier; no specific iPhone model compatibility is guaranteed.
Good to know
Questions, answered.
Will every iPhone fit?
No universal fit is guaranteed. Compare your exact model and case dimensions with the 20 × 13cm chest pocket before ordering.
Does the vest include an iPhone case?
No separate phone case is specified here. The vest itself has a water-resistant chest pocket; use additional phone protection if needed.
Keep exploring
Related guides
More details for choosing a phone-carrying vest for your run.
Défi The Elements