Gifting has never been easier
Perfect if you're short on time or are unable to deliver your gift yourself. Enter your message and select when to send it.
Short answer: A life vest has to be snug. Most are neoprene, and neoprene stretches by about 5–10% once it's in the water — so a vest that feels right on dry land will be loose on the lake. The check: try it on brand new and dry, and the two sides of the zip should sit about 5–10 cm apart before you do it up. The vest should have to stretch to close. If it does up easily, it's too big.
A loosely fitted life vest will not float you properly, and that's dangerous. Fit isn't a comfort question — it's the whole point of the thing.
How to check a life vest actually fits. 1 min 17 sec.
Why neoprene has to be snug
Most life vests are made from neoprene, and neoprene stretches by about 5 to 10% when it's in the water.
That's the whole reason the fit rule exists. Whatever slack is in the vest on dry land gets bigger once you're wet. So it should fit snug like a wetsuit when you try it on brand new and dry — because that's not how it's going to feel when you're using it.
The check: how far apart is the zip?
Put the vest on before doing it up.
- The two sides of the zip should sit about 5–10 cm apart.
- The vest should have to stretch to do up.
That's it. If the zip meets easily with no stretch, the vest is too big for you — and it'll be looser again in the water.
A vest fitted this way can feel restrictive the first time you put it on. That's expected, and it's what makes it work properly once you're in.
Every brand fits differently
Sizing isn't consistent across brands, so don't assume your size in one is your size in another.
Sizing detail lives on each individual product page rather than in one universal chart — check the sizing on the vest you're actually looking at. If you're between sizes or unsure, give us a call and we'll talk it through.
Fitting kids
Getting the fit right matters even more for children.
- Correct weight rating first. The vest has to have enough buoyancy for the child's weight — that's what the rating is for.
- Then snug around the waist and through the shoulders. Both, not just one.
Children must never be fitted into adult-sized vests. An adult vest can look like it fits a child and still be far too loose to hold them properly in the water. We stock dedicated kids, youth, girls and boys vests for exactly this reason — use one.
A life vest is a legal requirement for all towed watersports in Australia, and fines apply for non-compliance. Which vest you need depends on the water you're riding on and which state you're in — the rules aren't national. We've written a state-by-state guide to what life vest you need that covers it properly.
Life vest fitting FAQs
How tight should a life vest be?
Snug — like a wetsuit — when you try it on brand new and dry. The two sides of the zip should sit about 5–10 cm apart before you do it up, and the vest should have to stretch to close.
Why does my life vest feel too tight in the shop?
Because it's meant to. Neoprene stretches about 5–10% once it's in the water, so a vest that feels comfortable and easy on dry land will be loose when you're actually using it.
What happens if my life vest is too loose?
It will not float you properly. That's the risk — a loose vest can't do the job it's there for.
Can my child wear an adult life vest?
No. Children must never be fitted into adult-sized vests. Fit a child by weight rating first, so there's enough buoyancy for them, then check it's snug around the waist and through the shoulders.
Do all life vest brands fit the same?
No. Brands fit differently, so your size in one won't necessarily be your size in another. Check the sizing information on the specific vest you're looking at.
Do I legally need a life vest?
Yes — a life vest is a legal requirement for all towed watersports in Australia and fines apply. Which type you need depends on the water and the state, and the rules differ between states.
What's the difference between an L50 and an L50S?
They have identical buoyancy — both are 50N. The difference is water-type approval, not one being higher-spec than the other. Which one you need depends on where you're riding, and that's covered in the state-by-state guide.
Related guides
- What life vest do I need? A state-by-state guide
- The Breakdown: Life Vests
- How to get up on a wakesurfer
- How to get up on a kneeboard
Shop the gear
About this guide. Written from the video demonstration and produced by Waterskiers World — Australia's dedicated towed water sports retailer, family-run for over 20 years from our Brisbane store and online. Not sure a vest is fitting right? Talk to our team — we ride this gear.