Any decent distance journey or in challenging conditions (Speed Winding, Learning new tricks/moves) I will wear a helmet and an impact/floatation vest. Helmet basic water one, not sure of brand. Vest I love wearing my Prolimit Float vest. I do N95 over just a basic impact as I figure if I am going to wear it, it may as well be really safe.
www.prolimit.com/product/floating-vest-freeride-waist-size-zip/My iPhone max fits in the front pocket along with a spare GoPro battery, and there hydration loop fixtures on the back with a hose loop on the shoulder strap if you like to have hydration too. The side synchs help you get it nice and tight with no movement.
I use it for SUP racing, Windsurfer One Design racing, DW Foiling and Wing Foiling. Good price too.
Ride safe,
JB