Life jackets: All your questions answered

When it comes to maritime safety, life jackets play a crucial role in saving lives during emergencies on ships. These essential pieces of safety equipment are designed to keep passengers and crew afloat, providing vital buoyancy in potentially life-threatening situations. In this comprehensive guide, we will delve into everything you need to know about life jackets on ships, from their types and features to their proper usage and maintenance.

Types of life jackets

Life jackets come in various types, each designed to cater to different maritime situations. The most common types include:

  1. Type I: Also known as offshore life jackets, these are designed for open, rough, or remote waters where rescue may be delayed. They provide the highest buoyancy and are typically bright in color for better visibility.
  2. Type II: Intended for calmer waters and areas where rescue is expected to be quicker, these life jackets offer less buoyancy than Type I jackets. They are often used on commercial vessels and pleasure boats.
  3. Type III: These are more comfortable and suitable for activities like swimming and watersports. While they provide buoyancy, they might not turn an unconscious person face-up in the water.
  4. Type IV: These are throwable devices such as buoyant cushions or rings. They are not worn but kept easily accessible on boats for emergencies.
  5. Type V: Special-use life jackets designed for specific activities like kayaking or windsurfing.

Features and components

Modern jackets are designed with several key components and features to ensure optimal safety:

  1. Buoyant material: Foam panels or inflatable bladders provide buoyancy to keep wearers afloat.
  2. Straps and buckles: Adjustable straps ensure a secure fit, while quick-release buckles facilitate easy donning and removal.
  3. Whistles and lights: Some life jackets include whistles and lights to attract attention and aid rescuers in locating individuals in the water.
  4. Reflective tape: Reflective patches enhance visibility, especially in low-light conditions.
  5. Inflation mechanism: Inflatable life jackets have CO2 cartridges or manual inflation tubes to quickly inflate the jacket upon immersion.

Proper usage

Wearing a life jacket correctly significantly increases your chances of survival in a maritime emergency. Follow these guidelines:

  1. Wear at all times: Wear your life jacket whenever you’re on a vessel, especially during rough waters or adverse weather conditions.
  2. Secure fit: Ensure a snug fit by adjusting straps and buckles. The life jacket should not ride up when in the water.
  3. Correct type: Choose the appropriate type of life jacket based on the water conditions and activity.
  4. Inflation: If using an inflatable life jacket, regularly check the CO2 cartridge and inflation mechanism for proper functioning.
  5. Child safety: Ensure children wear properly sized life jackets designed for their weight and size.


Regular maintenance ensures that your life jacket remains reliable:

  1. Inspections: Check for any signs of wear and tear, including frayed straps, punctures, or deflated bladders.
  2. Inflation test: If you have an inflatable life jacket, inflate it and leave it inflated for a few hours to ensure it holds air.
  3. Storage: Store life jackets in a cool, dry place, away from direct sunlight and extreme temperatures.
  4. Cleaning: Rinse off saltwater or contaminants with fresh water and mild soap, then allow it to air dry.


Life jackets are not just mandatory safety equipment on ships; they are lifesavers. Understanding the different types, features, proper usage, and maintenance of life jackets is essential for ensuring the safety of everyone on board. By following these guidelines and best practices, you can navigate the waters with confidence, knowing that you are well-prepared to handle any emergency situation that may arise. Remember, a properly worn and maintained life jacket could be the difference between life and tragedy at sea.

More Articles for You

Interview for able body seaman: Tips and Preparation

Interview for Able Body Seaman is a critical step in securing a role in the maritime industry. It is a …

Essential Soft Skills for Seafarers

Introduction In the dynamic and challenging environment of the maritime industry, seafarers must possess a robust set of technical skills …

Able Seaman Career Path

Able Seaman Career Path begins with understanding the pivotal role of an able seaman, who is a core member of …

UK Certificate of Competency Guide

The journey to obtaining a Certificate of Competency (CoC) in the UK is a pivotal step for maritime professionals aiming …

Seafarer Recruiting: Streamline Your Maritime Hiring Process

In the intricate world of maritime operations, the efficiency of seafarer recruiting is a pivotal aspect of success. Recognizing the …

SIRE 2.0: A New Chapter in Maritime Safety Inspections

SIRE 2.0 it’s a refined and digital-forward approach to the Ship Inspection Report Programme (SIRE) by the Oil Companies International …

Download the Seaplify App
Your all-in-one maritime companion