After a long day at high altitude on the glaciers, slip your feet into the Olan and spend the evening warm and cozy under your expedition tent. These booties from Valandré weigh only 189 g and will hardly be felt in your backpack. Optimal protection thanks to a filling of farm-raised grey goose down, an efficient compartmentalization system, and reinforcements to withstand temperatures down to -30°C. So why go without them!