The Mountain Equipment Superflux Hut Slipper is a synthetically insulated hut slipper that is perfect for keeping your feet warm in alpine huts or when camping. The boots are insulated with POLARLOFT featherless insulation. This is designed to behave like down, yet unlike down, it is easy to wash and will still retain heat even when it is wet. A 20 denier HELIUM outer is abrasion resistant and protecting the insulation inside. The sole unit is tough, slip resistant PU which prevents you sliding around on those wooden hut floors. Please be aware that these are designed as lightweight hut slippers for occasional use. They are not robust enough for everyday household use. Mountain Equipment Superflux Hut Slipper Features POLARLOFT Powered by 3M featherless insulation 20D Helium outer shell Tough PU Sole Rear webbing pull tab Sizing TBC SizeUKEU Small5 - 637 - 39 Medium7 - 840 - 42 Large9 - 1043 - 45 XL10+46+ Weight:250g Mountain Equipment Superflux Hut Slipper