"Kapok-filled lifejackets are dangerous, even if they look brand new and have been well looked after."
Kapok is a fluffy plant fibre, similar to cotton. It has not been used in lifejackets since the 1980s because it can absorb water and cause wearers to sink. The cotton straps on these old lifejackets are also a serious risk. They rot over time — even if a lifejacket is not used.
Modern lifejackets of all types should be tested every time before they are worn.
Simple tests to do every time before you go on the water:
* Pull the straps, hard. If any of them stretch or tear, do not use the lifejacket, dispose of it, and replace it
* Check for any existing tears or cuts in the straps. If there are any, do not use the lifejacket, dispose of it, and replace it
* Check if it floats
More information about safety, storage, and for checking inflatable lifejackets is at www.maritimenz.govt.nz/lifejackets.