Until now it has been tough to get in the US, but now BNS will be distributing Guru, opening up a new level of kick wax performance. Absolute must-haves in the Guru Line are Extreme Hallgeir, Extreme39, and Extreme 39 Hard. The other waxes on this list are excellent as well.
BLUE 0ºc to -8ºc: Works well as a hardener and mixed with other klisters.
EXTREME 39 +7ºc to -2ºc: Incredible klister to mix with others for grainy and man-madesnow.
EXTREME 39 HARD +4ºc to -5 ºc: Tougher version of Extreme 39 works better in icy conditions.
RED +5ºc to +15ºc: Great klister in fine and coarse-grain snow & corn.