Spinlock

Lifejackets & Flotation

A lifejacket you forget you're wearing — until the moment you don't.

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Buoyancy
Guide

Which buoyancy do I need?


Buoyancy is measured in newtons — higher numbers mean more lift.

  • 50N — buoyancy aid for calm, sheltered water with help close at hand.
  • 100N — general lifejacket for sheltered conditions and inland use.
  • 150N — the recreational coastal and offshore standard.
  • 170N — performance offshore, for heavier crews and rough seas.
  • 275N — heavy-duty commercial and extreme-condition use.

Trusted in the world's toughest sailing races.

From solo skippers in the Vendée Globe to crews crossing the Atlantic each year in the ARC, Spinlock lifejackets are the equipment that gets sailors home. Tested at the limits, and made available to everyone.

The only piece of kit on the boat I genuinely never think about. Which is exactly the point.
Conrad Coleman, Vendée Globe Skipper
Read about our work with Vendée Globe sailors

Built for the worst day. Worn on the best.

Every Spinlock flotation product is designed and assembled in Cowes, on the Isle of Wight, where we've been manufacturing 60+ years. Every detail is designed to do its job, enhance your day on the water & stay out of your way until it doesn't.

60 years
engineering safety on water
Innovation
unique to Spinlock
UK-made
designed & built in Cowes, UK
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