Ditto, the Hollis mask straps, and I like that the straps are held in place with metal pins, not that I have broken the plastic 'pins' on a cheaper mask, but I have seen it happen.Just as an additional point though, it is the only mask I have ever owned, regular or backup, whose original strap I have not replaced.
We all know you don't have to 'crank' the mask to your face using the strap, but some divers do [poor training I suspect] and "ping" the plastic breaks, or the strap.
Always carry spare straps and a spare mask , I have sold a few masks to divers needing a mask in a hurry, never sold a strap [as yet] gave a few away.