The dana boot from Baffin is part of the ultralite collection. The ultralite series of boots is the evolution of footwear, where comfort meets agility without compromising style or protection. With highly breathable, waterproof upper materials and a body-heat moldable, removable liner, this series guarantees weather protection in temperatures ranging from 41 degrees Fahrenheit to minus/negative 58 degrees Fahrenheit. These boots are some of the lightest out on the market especially considering how warm they are.