We've worn them extensively last year with no trouble at all... Water splashing on the vest will not trigger it... typically would have to be submerged.

I looked at a lot of vests... i think this is the best out there, very comfortable. I wanted a vest that would be easy and comfortable to wear. I insisted that my wife wear one on board so easily decided to live by example... I wear mine 100% of the time while on the water on the 24' we sail routinely.

I've noticed that neither of us have worn them on larger boats we've be on but i do when having to go forward. It just makes sense to me. I've noticed that some of the more experienced sailors i sail with now also are wearing their vests now. I like that.

https://www.spinlock.co.uk/en/categories/lifejackets/product_groups/deckvest-lite