fonts not loading in iphone 5 (v. 10.3.2) safari

hi,

Just a quick one, it looks like on acutal checking the website https://mrdazza.com/test/ the fonts setup in Swiss Knife (that work perfectly fine on all other devices) dont load in the Safari

is there any fallback that i might use?(I know its only iphone 5 but i was just wondering if you were aware of this? – perhaps its not working on other devices?) the thing is that on the Responsivly App or Hoverify it all looks fine.

thanks

Darius