Buoyancy Booster

Kingii PFD, $89.99

It’s not uncommon for passengers and crew on a yacht to eschew a life jacket, but it makes sense to use some kind of flotation device, maybe something that doesn’t cover much skin, for soaking in the rays, or that doesn’t restrict movement. Kingii is a wrist-worn flotation device that inflates with the pull of a lever and provides enough lift to bring a 275-pound person to the surface. After deploying it, just repack it, replace the CO2 cartridge and it’s ready to go again.

Kingii, kingii.com