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Measure your mobile before you buy

Running mobile phone holder

When comparing a running mobile phone holder, start with the device dimensions, including its case. The Défi vest carries a phone in a zipped chest pocket and leaves two smaller shoulder pockets for other essentials.

Purchase, availability and delivery details are shown on Amazon UK.

Défi running mobile phone holder with a mobile phone in its chest pocket
Product listing

Défi running vest · UK guide

running mobile phone holder

Guide / 01

Measure the whole phone set-up

The chest pocket measures 20 × 13cm. Measure the phone with its case fitted and include any raised camera bump, ring or wallet attachment. A device may need extra clearance to slide into the pocket and close the zip.

If your phone is close to the stated dimensions, check the Amazon product images and listing details before ordering rather than assuming a tight fit will work.

Guide / 02

Keep small items in separate zipped pockets

Two zipped shoulder pockets, each 10 × 5cm, can separate a key, card or gel from the phone. Avoid overfilling them; compact pockets work best for small essentials rather than bulky objects.

  • Chest pocket: 20 × 13cm
  • Shoulder pockets: two at 10 × 5cm each
  • Adjustable waist belt: 26–40in

Guide / 03

Fit the vest to your run kit

The unisex, one-size design adjusts at the waist. Try it over the layer you plan to run in, make small adjustments and check that the phone remains comfortable as you bend, walk and jog.

The pocket is water-resistant rather than waterproof. Use a separate waterproof phone pouch when conditions call for stronger protection.

Guide / 04

Review the current Amazon UK offer

The product link opens Amazon UK, where you can check price, stock, delivery and seller terms for your location. Returns for marketplace purchases are managed through the order in your Amazon account.

Open the official Amazon UK listing

Good to know

Questions, answered.

Should I measure my phone with its case?

Yes. Include the case and any attached accessories when comparing your phone with the 20 × 13cm chest-pocket dimensions.

Can the pocket protect a phone in heavy rain?

The chest pocket is described as water-resistant, not waterproof. Use additional protection in heavy or prolonged rain.

Keep exploring

More details for choosing a phone-carrying vest for your run.

Défi The Elements

Ready to check the fit?

View on Amazon UK