Waterfly ONJ12 Hiking Waist Pack – Adjustable Bum Bag, Blue (S)

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£18.99 on Amazon (as of 31/10/2025 03:40 PST- Details) & FREE Shipping.

  • Compact yet roomy – three zip compartments hold phone, powerbank, wallet and more.
  • Secure internal zip pocket, four card slots and built‑in keychain for easy access.
  • Adjustable belt 40–125 cm with extra 30 cm strap for larger waists.
  • Breathable mesh back pad and anti‑slip buckle for comfortable, stable wear.
  • Durable SBS zippers and water‑repellent nylon fabric protect against light rain and sweat.

Product details

Waterfly bum bag – hiking waist pack for men and women

This compact Waterfly bum bag gets the basics spot‑on and is dead easy to use. If lugging a big rucksack feels like overkill for a short run or a quick dog walk, this keeps the essentials close and fuss‑free. It’s made from water‑repellent nylon, has a breathable padded back and sits comfortably whether you wear it at the front, side, back or slung across your chest.

practical features

  • Three separate zip compartments for organised stashing – two larger pockets will take most phones, a slim wallet and a powerbank, while the inner zipped pocket is perfect for valuables.
  • Four card slots keep cards scratch‑free and make contactless payments a doddle.
  • Built‑in keychain so you can avoid the faff of digging around for keys when you’re heading out in a hurry.
  • Front pocket for tissues, dog poo bags or anything you want to grab without stopping.

built to last

It uses reliable SBS zippers and an anti‑slip, low‑temperature buckle rated for tens of thousands of opens and closes (it’ll still work down to −40°C). A neat fixing loop keeps any excess strap tidy so nothing flaps about when you’re on the move.

technical details

  • Dimensions approx. 50.8 x 4 x 12 cm; weight c. 181 g — light enough to forget, solid enough to carry what matters.
  • Belt adjusts from 40–125 cm, with an extra 30 cm strap included to fit a wider range of sizes.
  • Material: nylon with a water‑repellent finish; back panel has breathable mesh padding for comfort.

when to use it

Ideal for running, hiking, jogging, cycling, walking the dog or pottering about town when you want to travel light. Everything stays organised and within reach, so no more faffing at the side of the trail looking for your phone or cards. Do bear in mind it’s water‑repellent, not fully waterproof — in proper heavy rain a dry bag for electronics is still a good shout.

If you’re wondering whether a large phone will fit, most common models do; for very large phones or thick cases, check the measurements first. All in all, a tidy, practical and durable waist pack — handy, unfussy and ready for your next walk or run.

Additional information

Brand

Waterfly

Model

ONJ12

Colour

Blue

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