Well it was about -12C and 4 m/s wind here. I wore a Bavac base layer, Adidas Tshirt, windtop and light Swiss Alpine jacket, mitts, hat, buff, shorts and long Helly Hansen socks. The snow had stopped by the time I got home. I think 4 top layers was a bit overkill. The Salomon Speedcross 3 shoes worked well in 2 to 3 cms new snow. The Petzl Nao headtorch also did well on snow. It sensor was not thrown by backscatter.