Scarpa Alien Color:Yellow Black The skis 89mm underfoot is Color:Vibrant Yellow The skis 89mm underfoot is great for handling more mellow snow conditions or blasting spring corn while still being wicked lightweight and easy to move around on the skin track In mold construction and Aerocore ventilation keep weight low while maximizing airflow to reduce fog and regulate temperature on long climbs and stormy descents If you have had these thoughts and are tired of your uphill performance being inhibited by some beefy and heavy boots the Scarpa Alien is the winner for you This boot is not going to be boot to crush huge lines on but if you count grams and keep things lightweight this is the boot for you