Gone a bit floppy?
Need to be a bit taughter?
You'll need a replacement elastic strap then!
These seem to be almost impossible to find so I've had to make my own - 20mm wide black elastic and two plastic adjustment buckles; you don't get the metal clips (which attach strap to goggle on the original) so you will have to thread this new one through.
First photo. shows the strap you're buying, second photo. shows the clip which you will need to thread this strap through to attach to your goggles.
We also do this as a 'Deluxe' model with Brass adjustment buckles at £6.99, please see my other listing.
< Have a look around our EBAY SHOP for other bargains.