Check the fit against your running kit
Slim running vest phone holder
If you want a slim running vest phone holder, compare the vest shape and pocket depth with your own clothing and device. The Défi design keeps storage to one chest pocket and two smaller shoulder pockets, but does not promise a particular slim fit on every body.
Purchase, availability and delivery details are shown on Amazon UK.
Défi running vest · UK guide
slim running vest phone holder
Guide / 01
A compact pocket layout
The chest pocket measures 20 × 13cm. Two smaller zipped shoulder pockets measure 10 × 5cm each, giving you separate places for a phone and compact essentials.
Pocket dimensions do not describe the vest’s overall thickness or how it will sit on every runner. Review the Amazon listing images and test it with your normal kit.
Guide / 02
Adjust it over your usual layers
The waist belt adjusts from 26–40in. Try the vest with the clothing you intend to wear and check that the phone pocket does not press uncomfortably when you bend or move.
A phone case or larger device can change the profile. Measure your complete phone set-up and avoid overfilling the shoulder pockets.
Guide / 03
Choose storage for your route
This is a phone and small-item carrier, not a hydration system or high-volume running pack. If you need a close-fitting multi-litre load carrier, compare a purpose-built pack.
The chest pocket is water-resistant, not waterproof. Add extra protection for electronics in wet conditions.
Good to know
Questions, answered.
Is the vest guaranteed to have a slim fit?
No fit profile is guaranteed for every person. Check the product images, waist range and pocket dimensions, then try it with your running kit.
How much can I carry?
It is designed for a phone and compact essentials. Pocket measurements are 20 × 13cm at the chest and 10 × 5cm for each shoulder pocket.
Keep exploring
Related guides
More details for choosing a phone-carrying vest for your run.
Défi The Elements