Unless UR in the over talented brigade or wearing a helmet suggest knocking up one of these
to hook onto sunnies strap....
works a treat... I am with seafever on this one have been progressively spending less and less each season...
Now keep an eye out for safety sunnies/glasses all year - optically adequate but my first set of REVO aqua's many years back got added to the davey jones locker -- sob sob - since - every pair have either bust/scratched/forgotten at shower/rusted pins - As long as you manage to hang-on to them - the more you spend the longer they last (to a point).. What ever you get make sure they are capable of taking a decent impact.... - I have been smacked on the glasses when trying to do an upwind gybe, the wind flipped the board - saved a shinner!!
Cheers
AP...