The elasticated strap combined with cylindrical rubber inserts and adjustable toggle provides a secure and unrestrictive solution to keeping your glasses in place.
Well made product . Good length of strap avoiding it being annoying around your head!
A brilliant accessory to have! I use them with my normal glasses as well and after having been thrown off my dinghy multiple times in rough weather. I can vouch for them giving you that extra security and comfort, knowing you haven't lost your sunnies.
Best strap ever for my sunglasses. They hold on to all my different sized Kaenons. Perfect for sailboat racing.
I use this for my normal glasses which are varifocals and essential for me, so the strap is really important. This one feels more secure and comfortable than most.