AIARE Backcountry Decision-Making Guide Color:One Color Polarmax's Double Layer long underwear

Polarmax's Double Layer long underwear is sure to keep you warm when you need it most

Load up your plate or pack and get after it

impact absorption

flex and fatigue-zapping arch support

AIARE Backcountry Decision-Making Guide Color:One Color Polarmax's Double Layer long underwearDeveloped by the American Institute for Avalanche Research and Education (AIARE) to meet the American Avalanche Association (AAA) standards, the AIARE Backcountry Decision Making Guide is an essential snow study tool for the aspiring avalanche professional or serious student. Used with a pencil, the pages are waterproof so you can collect data even on the wettest days.