Waterfly Large Unisex Bum Bag (Black) – Multi-Pocket Fanny Pack for Hiking, Running & Cycling

Waterfly bum bag fanny pack – large unisex waist pack (black)

Want a fuss-free way to carry your bits and bobs when you’re out and about? The Waterfly large bum bag is made for anyone who prefers to travel light but stay organised. Practical, comfy and a touch sporty — it’s ideal for hiking, running, cycling, travelling or simply popping to the market. A proper little helper that makes life a bit less faffy.

What it is

This is a multi-pocket fanny pack in water-resistant nylon with a soft, breathable back pad. There are five zippered compartments in total, each a different size so your phone, keys, cards, bottle and small snacks all have their own spot. Wear it on the waist or sling it across your chest — whichever feels right.

Why it’s useful

• The main compartment has a roomy inner section that will take a standard 500 ml bottle — handy when you don’t want to haul a big rucksack on short outings.
• A second pocket includes two small inner sleeves for your phone, cards and wallet, so essentials are easy to find and won’t rattle about.
• Two front pockets give quick access to things you use often, like hand gel, snacks or a travel card.
• Reflective detailing on the strap end boosts visibility for late-evening runs or cycle rides.

Comfort and build

Breathable mesh on the rear helps cut down on sweat, while a padded panel makes carrying heavier loads more comfortable. The adjustable waist strap fits roughly 41–132 cm (16–52 in), so it’ll suit most people. Strong SBS zippers and a robust buckle keep everything secure, and the nylon is designed to resist chafing for long-term use.

Practical notes and common questions

• Dimensions and weight: manufacturers sometimes quote slightly different sizes; the pack body generally sits around 20–31 cm wide and weighs about 190 g — light enough to forget, but roomy enough for the essentials.
• Water resistance: the outer nylon repels light rain and splashes (splashproof rather than fully waterproof). Avoid heavy downpours if you’re carrying fragile valuables.
• Personalisation: there’s a front patch pocket that’s easy to customise if you fancy adding a badge or patch.
• Can it replace a backpack? For day trips and active use it often can — ideal when all you need is a bottle, phone and keys. For multi-day trips or heavier kit, stick with a proper rucksack.

Technical details

Material: water-resistant nylon. Weight: approx. 190 g. Strap: adjustable 41–132 cm (16–52 in). Zippers: SBS. Colour: Black. Model/item number: ONJ02.

Overall, the Waterfly bum bag is a neat, sensible pick if you want to carry essentials comfortably and without fuss. Versatile, easy to wear and built for everyday outdoor use — grab it, zip it up and you’re off.