How to Choose a Foam Lifejacket: ISO 12402 and SOLAS

(Guide from LALIZAS official representative — Gaelix Marine Service)

Introduction: a sailor’s word

The sea is strength and eternity. It generously rewards us with freedom and beauty, yet it demands respect and caution. Every sailor, yachtsman, or fisherman knows: safety on the water doesn’t begin with the compass, sails, or charts — it begins with a lifejacket.

I’ve spent many years at sea and witnessed much. The ocean does not forgive negligence. But one thing I know for sure: the right lifejacket is not just a piece of equipment — it is your personal chance to come back home.

In this article, we’ll look at everything you need to know about foam lifejackets: how they differ, what the standards mean, and why LALIZAS products are considered the gold standard in maritime safety.

And most importantly, remember: Gaelix Marine Service is the official worldwide representative of LALIZAS. We welcome cooperation with corporate clients, charter companies, and shipping enterprises for whom safety at sea is not just a formality, but a principle.

Why choose a foam lifejacket

Inflatable lifejackets are compact, but foam-filled models have one unbeatable advantage: they are always ready to use. No checking, no inflating, no cartridges to replace. Take it, put it on — and buoyancy is guaranteed.

Advantages of foam lifejackets:

Reliable and simple — they always work.
Require no technical servicing.
Suitable for children and adults of all ages.
Time-tested and certified by international standards.

ISO 12402: what do 50N, 100N, 150N mean?

On foam lifejackets you’ll see markings such as ISO 12402-5 (50N), ISO 12402-4 (100N), or ISO 12402-3 (150N). Here’s what they mean:

50N – Buoyancy Aid

Designed for confident swimmers.
Ideal for water sports: kayaking, SUP, windsurfing.
Lightweight, compact, allows free movement.
Not designed to automatically turn an unconscious person face-up.

100N – Coastal Lifejacket

A universal choice for fishing, boating, and calm coastal waters.
Provides automatic face-up position even if the person is unconscious.
Includes collar support, whistle, and reflective tape.
Suitable for both adults and children.

150N – Offshore Lifejacket

Built for more demanding conditions.
Ensures reliable self-righting, even for people in heavy clothing.
Often equipped with a crotch strap and lifting loop.
Ideal for offshore sailing, professional crews, and expeditions.

SOLAS/MED: the professional standard

While ISO 12402 lifejackets cover private and leisure use, SOLAS/MED-certified lifejackets are designed for the commercial and professional fleet.

Mandatory on passenger ships and merchant vessels.
Offer higher buoyancy and a bright orange color.
Compact folding models are available (important for ferries and cruise ships).
Color-coding for “crew” and “passengers” ensures fast distribution in emergencies.

Checklist: how to choose your lifejacket

Identify your conditions of use — sports, leisure, coastal, or offshore.
Check the standard — ISO 12402-5 (50N), ISO 12402-4 (100N), ISO 12402-3 (150N), or SOLAS.
Review safety features — crotch strap, whistle, reflective tape, collar.
Choose size by weight and chest measurement — it should fit snugly but comfortably.
Plan storage — for fleets, compact SOLAS folding models are more practical.

Sizing: from children to heavy-duty use

Children’s models start at 3–10 kg.
Adults are divided by weight: 40–70 kg, 70–90 kg, 90+ kg.
For larger users (>120 kg), LALIZAS offers extended sizes.

A proper fit is critical: the jacket must be secure enough not to slip off during a fall into the water.

Care and maintenance

Foam lifejackets are low-maintenance, but proper care extends their life:

Rinse with fresh water after sea use.
Dry in the shade, away from direct sunlight.
Store in a dry place.
Regularly check the whistle, straps, and seams.

FAQ: frequently asked questions

What does “N” mean?
It refers to buoyancy in newtons (10N ≈ 1 kg).

Will a 100N jacket keep me face-up?
Yes, it is designed to automatically turn an unconscious person face-up.

Why is a crotch strap important?
It prevents the lifejacket from riding up or slipping off in the water.

Can a child use an adult lifejacket?
No. Children must always use the correct weight-specific model.

What’s the difference between SOLAS and ISO?
SOLAS is required for commercial vessels under international law. ISO covers private and recreational use.

Corporate cooperation with Gaelix Marine Service

We know safety at sea is not just an individual concern. Charter fleets, shipping companies, tourist agencies, and offshore contractors all need reliable, certified lifejackets.

Gaelix Marine Service is the official worldwide representative of LALIZAS.
We provide:

Wholesale supply of ISO and SOLAS foam lifejackets.
Tailored solutions for corporate clients.
Crew training and expert consultations.
Flexible conditions for long-term cooperation.

Our mission is clear: every passenger, every sailor, every crew must feel secure at sea. We know the value of life on the water, and we work to ensure you can rely on your equipment.

Conclusion: the sea forgives no mistakes

A foam lifejacket is not just another piece of gear — it’s your safety line, your second chance in rough seas.

Choose wisely. Respect the standards. Never compromise on safety.

And when you’re ready for reliable supply — reach out to Gaelix Marine Service. As the official representative of LALIZAS, we are here to equip you with the world’s best lifejackets and support you every step of the way.

Storms may come and go, but life must go on.

09 september (22:13)