These goggles are seriously cool, they look great. More to the point I got these for use to stop bugs and grit getting in the eyes while cycling. The frames flex to fit your face, and comfortable to wear. The high viz yellow lens provide unbelievable clarity in poorer light conditions. Dark lens provide a decent level of filtration and clarity.
They do steam up if stood still, but so long as you keep moving, or head into the breeze, they demist pretty quickly. Not tried during cold winter conditions, only during the warm summer.
Overall excellent value, decent quality, and UV certification
Great product - really good quality and fit - I use them in my Kit Car which has no windscreen and these googles are absolutely airtight around the eyes - if your'e sweaty they can steam up a little but once on the move quickly clear. Very comfortable to wear for long periods.