Why plastics? Low cost, reliability and absolute waterproofness. The ARCTIS EXPE is a comfortable technical double mountaineering boot that has summited every major peak in the world. Unique is Koflach's Y-Technology - a blending of two Pebax plastics which provides a rigid platform for climbing and a soft comfortable upper and ankle cuff. Steel Roller Lacing makes adjusting the tension and foot retention simple and easy. Asymmetrical Vario Cuff allows a more natural lateral movement plus fore-aft flex. Trail and snow traction and shock absorption provided by Vibram Dalaugiri sole which accepts all crampons. Tall high altitude foam inner boot is equipped with heat reflective insole for maximum warmth and molds to foot over time.
We recommend sizing 1/2 size up to allow adequate toe room.
Example if US 10.5 / UK 9.5 is your normal size, order up a UK 10 / US 11. Don't forget your Vapor Barrier Socks!