Restocked

Grey Cause vest with the Hidden Supergrip handles out at the sides

Back of the grey Cause with the Hidden Supergrip handles out

Jetpilot Cause Life Jacket - Grey

4.9

Rated 4.9 out of 5 stars

188 Reviews

L50S

$209.99 AUD

Sold out

4.9

Rated 4.9 out of 5 stars

188 Reviews

or 4 payments of $52.50 with

Colour:Grey

Jetpilot Cause Life Jacket - Charcoal/Orange L50 4 — image 5

Jetpilot Cause jet ski life jacket in Red, front view with the waist buckle, D-ring and PK Lok zip

Jetpilot Cause jet ski life jacket in Yellow, front view with the waist buckle, D-ring and PK Lok zip

Jetpilot Cause jet ski life jacket in Blue, front view with the waist buckle, D-ring and PK Lok zip

Jetpilot Cause jet ski life jacket in Orange, front view with the waist buckle, D-ring and PK Lok zip

Style Code: JA24218

Colour: Grey

Style Code: JA24218

JA24218

Cause size guide

Your measurements

Size chart

How to measure

Chest

Wrap a soft tape around the fullest part of your chest, under your arms. Keep it level across your back and comfortably loose.

Weight

Weigh yourself, then check you sit inside the weight range for that size.

How the Cause fits Comfort Cut

A multi-purpose, all-round cut that sits comfortably on most builds, with a waist buckle to pull it snug.

Check the fit

The lift test

Zip it, clip the buckle and get a mate to lift it at the shoulders: it shouldn't ride up past your chin or ears.

Tight fit = safe fit

It should feel snug when it's dry. It settles in once it's wet, and a loose vest can ride up or slip off when you hit the water.

Between two sizes?

Send us your chest and weight and we'll help you pick before you buy.

Chat with us 21-day returns

Free shipping orders $200+
21-day returns
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About the Cause Life Jacket

A comfort-cut all-rounder from Jetpilot's best-selling vest series.

The Cause is Jetpilot's best-selling life jacket, a comfort-cut vest built for most days on the water. This Grey has a pale upper over an embossed lower panel, a shield logo on the chest and Cause across the back. The 100% EcoPrene shell is rated 30% lighter than traditional neoprene, so it's soft and easy to wear all day.

Approved to Australian Standard AS 4758 Level 50S.

Built for: jet ski riding, time behind the boat and carrying a passenger.
Best for: riders who want one vest that does it all.

100% EcoPrene: light and soft, rated 30% lighter than traditional neoprene
Hidden Supergrip handles: come out for a passenger and tuck away when you're solo
Comfort cut: a multi-purpose, all-round fit
PK Lok zip: with a waist buckle to pull it snug
Lanyard safety clip: keeps your kill-switch lanyard handy

Complete your ride

Picked to go with this vest.

Venture Handle Bar Bag $69.99

Essentials Watercraft Kit $299.99

Jetpilot Shield 2-in-1 Interchangeable Sunnies & Goggles

Shield 2-in-1 Interchangeable Sunnies & Goggles $149.99

Jetpilot x Strong Arm Strap $49.99

The Specs

Standard: Australian Standard AS 4758 Level 50S
Entry: front entry, PK Lok zip and waist buckle
Shell: 100% EcoPrene, rated 30% lighter than traditional neoprene
Foam: Freelite approved buoyancy foam
Handles: patented Hidden Supergrip handles
Lanyard: safety clip for a kill-switch lanyard
Fit: comfort cut, multi-purpose
Design: pale grey upper, embossed grey lower panel, shield logo on the chest, Cause on the back
Sizes: S, M, L, XL, 2XL, 3XL, 4XL
Best for: recreational jet ski riding and time behind the boat

Designed For

Jet Ski Riding
Behind the Boat
Carrying a Passenger
All-Day Comfort
Sizes to 4XL

The Fit

Comfort Cut
A multi-purpose, all-round cut that sits comfortably on most builds, with a waist buckle to pull it snug.

Tight Fit = Safe Fit
It should feel tight when it's dry. It gives a little once it's wet, and a loose vest can ride up or slip off when you hit the water.

Find your size
Measure around the fullest part of your chest, under your arms, then check your weight:

S: 92 cm chest, 40–60 kg
M: 100 cm chest, 60–70 kg
L: 104 cm chest, 70 kg+
XL: 112 cm chest, 70 kg+
2XL: 118 cm chest, 70 kg+
3XL: 125 cm chest, 70 kg+
4XL: 145 cm chest, 70 kg+

Between sizes? Try both on over whatever you ride in. Zip it, clip the buckle and get a mate to lift it at the shoulders: it shouldn't ride up past your chin or ears.

Tested. Trusted. Australian Certified.

Approved to Australian Standard AS 4758 Level 50S.

On the ski
Level 50S is accepted on a jet ski on smooth and enclosed water (rivers, lakes, dams and sheltered bays) in every state. Queensland requires Level 50 on a jet ski in partially smooth and open water, and Tasmania requires Level 100 or above beyond sheltered water.

Behind the boat
Every state except WA requires an approved lifejacket when you're towed, and Level 50S is accepted in all of them.

Check your state
Our jet ski life jacket guide covers each state's rules.

Look after it
Rinse it in fresh water after every sesh, dry it out of the sun, keep it away from fuel and store it hung up, not crushed under the esky. Check the zip, buckle and foam before you ride, and replace it if it's torn, crushed or badly faded.

Not the Right Fit? No Stress

We’ve got your back. If your new Jetpilot gear doesn’t fit right, isn’t what you expected, or turns up faulty, no stress - you can send it back or swap it out. You’ve got 21 days from purchase to return it, and we’ll sort you with a refund or exchange.

More info can be found here at returns & exchanges

Questions riders ask

Are all the colours the same vest?

Same cut, foam and Hidden Supergrip handles. The Red, Yellow, Orange and Charcoal/Orange are Level 50 high-vis, with a Flex Lite Ultra neoprene shell and EcoPrene lower panels. The Black, Blue and Grey are Level 50S, in 100% EcoPrene. Both levels float the same.

What size do I need?

Measure around the fullest part of your chest, under your arms, and match it to the chart under Find my size: S is for a 92 cm chest, 4XL for 145 cm. It's cut straight through the body, and the waist buckle pulls it snug so it stays put. Snug when it's dry is right; it settles in once it's wet.

Can a passenger hold on?

Yes. Hidden Supergrip handles give your passenger something solid to hold, so they're not hanging on to you, and they tuck away when you ride solo.

Is this vest legal on a jet ski in my state?

This colourway is Level 50S, approved to Australian Standard AS 4758. Level 50S is accepted on a jet ski on smooth and enclosed water (rivers, lakes, dams and sheltered bays) in every state. Queensland requires Level 50 once you're past smooth water, and Tasmania requires Level 100 or above beyond sheltered water. Rules change by state, so check yours before you launch. Our guide covers each state.

What's the difference between Level 50 and Level 50S?

They float the same. Level 50 comes in high-vis colours, so you're easier to spot, and it's the one Queensland requires past smooth water. Level 50S comes in every other colour and is the ski, wake and tow vest on smooth water in every state. Neither will turn you face-up on its own, so both are for riders who can swim, with help close by.

Is this an impact vest?

No. It's a lifejacket, approved to AS 4758 and tested to keep you afloat. An impact vest without an AS 4758 level mark isn't a lifejacket, so it doesn't count where one is required on the ski or behind the boat.

What if the size is wrong?

Swap it or send it back for a refund within 21 days of purchase. Sale items are the exception. Returns and exchanges has the steps.

How do I look after it?

Rinse it in fresh water after every sesh, dry it out of the sun, keep it away from fuel and store it hung up, not crushed under the esky. Check the zip, buckle and foam before you ride, and replace it if it's torn, crushed or badly faded.

Not Sure What You Need?

Hit us up! - We'll point you in the right direction and get you sorted with the right gear.

Free Standard Shipping* Aus Wide Orders $200+

Jetpilot Australia | CauseGrey PDPCollectionBanner Desktop

The Cause Life Jacket Series

The Cause Series is the original Jetpilot life jacket - our longest-running and most trusted vest. First designed for PWC recreation and now worn across all watersports, it’s been refined for over 20 years to perfect the balance of comfort, durability, and performance. Made from sustainable Ecoprene, a 30% lighter alternative to traditional neoprene crafted from recycled plastic bottles, the Cause combines eco-conscious innovation with proven design. A true staple in the Jetpilot range, it’s a rider favourite that continues to stand the test of time as one of our most reliable go-to vests season after season.

Made With

Ecoprene

Ecoprene is our next-gen material crafted from recycled plastic bottles - lightweight, ultra-soft, and tough where it counts. It delivers long-lasting comfort without sacrificing strength, and just like traditional neoprene, it’s water-resistant and ready for the elements. Every piece helps reduce waste and push toward a cleaner planet - without compromising performance.

What Hits Different

Jetpilot Australia | JetpilotAusStandards

Certified Where It Counts

Every Jetpilot vest meets Australian Standard AS 4758, so you know it’s been tested tough and built to perform when it matters most.

We’ve also engineered vests that meet ISO and CGA certifications for our international riders - same Jetpilot quality, trusted worldwide.

Because safety isn’t optional - it’s part of the design.

The Original All-Rounder

The Cause is Jetpilot’s longest-running, most trusted life jacket series. Year after year, riders keep coming back for one reason - it does everything, and it does it well.

Jetpilot Australia | SupergripHandles CauseGrey

Passenger Grip, Rider Style

Patented Hidden Supergrip Handles give your passenger a safe hold without cluttering your ride. Clean, discreet, and ready when you need them.

4.9

Rated 4.9 out of 5 stars

Based on 188 reviews

99%would recommend these products

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DesignRated 4.8 on a scale of 1 to 5

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SD
Shanna D.
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Race vest
Awesome vest! Light weight and comfortable. Almost feels like you’re not wearing it. Wore it for the opening race in WA. Looks amazing in pics and so comfortable. Definitely recommend!
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TF
Taylor f.
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I recommend this product
Product Standouts Great Quality, Value for Money, Colour, Functionality
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Awesome
Great fitting lifejacket and very comfortable, Only downside would that there is no zippered compartment for for licence, ECT....
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C
Corey
Reviewing
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I recommend this product
Rated 5 out of 5 stars
1 month ago
5 Stars
I like the look and feel of the jacket and nice pockets haven't had the chance to use it yet
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ND
Nick D.
Verified Buyer
Reviewing
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I recommend this product
Product Standouts Great Quality
Rated 5 out of 5 stars
2 months ago
Amazing life jacket
Loving the feel of this life jacket. Very snug fit. All the space for radio, e-pirb and little toggles for clipping on the key when I’m on the JetSki. Absolutely love it.
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JT
Jonathan T.
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Comfortable but
Tight, when I held it next to my other XL life jacket this was more like a large so it is quite snug. Other than that, worn it once - nice & light, and the love/ grab handles are great!
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