White Sparkle is undyed stretch velvet.  Pieces are 6x30".
It is a stark white with metallic glitter, whereas my undyed stretch velvet is an offwhite.  This would be perfect for snow or to combine with other velvets. Check out silver snow sparkle which is a pale silver; great contrast for snow. 
Sparkle does shed its glitter; I recommend shaking the pieces outside after cutting strips for hooking.