backcountrystore.com, however i got one but it was just a bit a bigger than the regular strap, plus a pain to attach, etc and no buckle in back..so i would suggest a different goggle to go with a helmet...Zeal makes a sick, inexpensive model-best helmet-fit out there! www.zealoptics.com
'There he goes. One of God's own prototypes. Some kind of high powered mutant never even considered for mass production. Too weird to live, and too rare to die.'
Zeal Optics, Giro, S.O.S. gear representin'