Onyx Flux Premium Aqua Punching Bag - Two-Tone Series (18" / 54L)

Onyx Flux Premium Two-Tone Aqua Punching Bag - 18"

Elite Water Resistance | Joint-Friendly Impact | Premium Two-Tone Finish

The Onyx Flux is the premium expression of our best-selling aqua platform - the proven 18" / 54L teardrop water bag, finished in bold two-tone colourways for gyms that want their kit to look as sharp as it hits. Water absorbs and disperses impact evenly, so it delivers the dense, realistic feel of hitting a body while dramatically reducing recoil into wrists, elbows and shoulders - train harder, longer, with less joint wear.

The teardrop profile takes everything: straight punches, hooks, uppercuts, body shots, knees and close-range combinations.

Why Onyx Aqua Bags Don't Leak

Cheap water bags fail at three points - and this platform engineers all three out:

• Seamless moulded body - no mould lines means no weak points to split, and a smooth surface that's genuinely barehand and open-finger MMA glove friendly
• Injection-moulded suspension top - the rigid top takes the hanging load while the flexible body takes the strikes, so the bag holds shape without wrinkles or stretch
• Threaded anti-leak screw plug in the top, not the body - the fill port sits up in the reinforced suspension section, sealed with a threaded plug that stays put under heavy impact (and supports an air top-up to keep the surface taut)

The design is factory drop-tested full of water, and UV-resistant for outdoor training - deck, garage or backyard.

Your Weight, Your Dial

Water fill means adjustable weight without buying a different bag: fill to 70-80% (the sweet spot) for a heavy, realistic swing up to around 54kg, or run it lighter for faster, reflex-style rounds. Drain it for moving house or storing - it packs down to under 6kg.

Key Features

• 18" / 54L teardrop platform - up to approx. 54kg filled, adjustable by fill level
• Premium two-tone finish - four colourways to match your gym's look
• Joint-friendly impact - water absorbs recoil that sand bags send back into your hands
• Seamless leak-proof construction - moulded body, reinforced top, threaded plug
• Filling hose and hanging chain included - hang it, fill it from any tap, train
• UV-resistant - suitable for outdoor setups

Available Colour Options

• Black / Red
• Black / Blue
• Black / White
• Black / Orange

Which Onyx Aqua Bag?

Frequently Asked Questions (FAQs)

Q: How does this compare to a sand-filled bag?
A: Water disperses impact instead of bouncing it back - a denser, more body-like feel with far less shock into your wrists, elbows and shoulders. Sand bags still win for maximum mass; aqua bags win for volume of training your joints can handle. Many gyms run both - see our T-Flex teardrop for the sand-filled equivalent.

Q: Does the bag come filled?
A: No - it ships empty (light and cheap to freight), then hangs on the included chain and fills from any tap with the included hose. Fill to 70-80% for optimal performance.

Q: Can it handle heavy hitters?
A: Yes - fully filled it reaches approximately 54kg and is built for high-impact commercial use.

Q: What should I hang it from?
A: Any rated ceiling mount, our wall mounted bag arm or modular bag racks. Add the 360 rotating swivel - its multi-hook frame pairs perfectly with aqua bags and protects your mount.

Q: Can I train on it bare-handed?
A: The seamless, soft-touch surface is one of the few genuinely barehand-friendly bags - also ideal for open-finger MMA gloves.

Backed by Fitness Hero Sydney

Stocked at our Sydney warehouse with local warranty support - and you can see the aqua range in person at our Bankstown Megastore.

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Hits like a body, spares your joints - in colours that match your gym.