Waterfly ONJ12 Denim Blue Waist Bumbag – Adjustable Fanny Pack for Running & Hiking

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£16.99 on Amazon (as of 31/10/2025 03:40 PST- Details) & FREE Shipping.

  • Three zip compartments including internal zip pocket for valuables.
  • Four card slots and built-in keychain keep essentials organised.
  • Adjustable belt fits 40–125cm plus a 30cm extender for larger waists.
  • Breathable mesh back pad for comfort during long runs or hikes.
  • Durable SBS zippers, anti-slip buckle and water-repellent nylon fabric.
  • Multiple carry styles: waist, hip, chest or crossbody for versatile use.

Product details

Waterfly onj12 bumbag – denim blue waist pack for running & hiking

This compact bumbag does the simple things brilliantly — stash your phone, cards, keys and a small powerbank without any faff. It’s slim yet surprisingly spacious, built for active days when pockets just won’t cut it. Comfortable enough for a long jog and neat enough for popping about town.

Key features

  • Three zipped compartments: two roomy pockets for phones and powerbanks, plus an internal zip pocket for passports, cash or anything valuable you don’t want rattling about.
  • Four separate card slots keep cards scratch-free and easy to find — no rummaging needed.
  • Integrated keychain clip stops keys getting buried at the bottom.
  • Adjustable belt from 40–125cm, and a 30cm extender is included for extra reach — fits most body shapes and sizes.
  • Backed with breathable mesh padding to cut down on sweat and keep things comfy when you’re on the move.
  • Made with SBS zippers, a secure anti-slip buckle and water-repellent nylon to shrug off light drizzle and perspiration.
  • Built-in headphone jack for hands-free listening while you’re out and about.

Practical uses and why it helps

Heading out for a morning run, walking the dog, cycling or navigating a busy travel day? This waist pack keeps the essentials close and organised so there’s no digging around. No more juggling a phone and keys, and no more bouncing or chafing from a poorly fitting strap. It’s also handy for camping or short hikes when a big rucksack would be over the top.

  • If you’ll be carrying a phone and powerbank, there’s a dedicated pocket roomy enough for both.
  • For city life, the card slots and inner zip pocket give extra security for cards and ID.
  • Dog walkers will love the front pocket for waste bags and tissues — easy to reach when you need them.

Technical details and durability

Constructed from water-repellent nylon with robust SBS zippers and a buckle tested for longevity and reliable performance down to -40°C (manufacturer’s claim). The anti-slip buckle keeps any excess strap tucked away so it won’t flap about. Dimensions are compact at roughly 23 x 4 x 12 cm and it weighs about 160 g — light but reassuringly solid.

Things people often ask

Will it hold a large phone? Most modern phones fit in the main pockets, though sizes vary — it’s worth checking your phone’s measurements against the internal pocket if you’re unsure. Is it waterproof? The fabric is water-repellent and will cope with light rain, but it’s not fully waterproof for submersion. Can both men and women wear it? Yes — the wide adjustment range and extra 30cm strap suit a variety of body shapes and styles: wear it on your waist, hip, chest or sling it over the shoulder.

All told, it’s a practical, well-made everyday pack that doesn’t shout about itself but gets on with the job. A tidy little companion for active days when freedom to move matters more than carrying the kitchen sink.

Additional information

Brand

Waterfly

Model

ONJ12

Colour

Blue

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