Alpinas Snowfield backcountry NNN-BC touring boot offers the perfect balance between burliness and comfort for long days in isolated territory. With durable synthetic leather uppers and Thinsulate brand insulation the Snowfield was made for cool days on the snow. The Alpina Snowfield is perfect for exploring the backcountry without spending a lot of wearing larger heavier boots, theyre perfect for "light backcountry" touring where the need for superior downhill control is overridden by a preference for comfort. The Rottefella NNN-BC III soles and Alpinas medium flexing midsoles combine to give the Snowfield torsional control for turning while allowing for a comfortable forward touring stride. A slightly wider last provides a forgiving wider forefoot. The speed lacing system and anatomical foot bed provide a snug and comfortable fit. Features: Synthetic uppers, Thinsulate insulation, speed lace system, medium flex, Rottefella NNN-BC III sole, compatible with Rottefella NNN-BC bindings, available in EUR sizes 36-49.