Guru Blue klister is a very durable race klister for icy snow between 0°C and -8°C when hardwax isn`t testing well. Great when the tracks are ice with fresh dusting on top, and nothing is gripping. Works well to mix-in or harden other klisters as well. The silver additive makes this klister slightly softer than the normal Guru Blue klister, allowing for better fresh snow qualities.