Description of Kayland Apex Rock Mountaineering Boots - Women's Extremely light boot with step-in crampon bail at heel. Designed for mountaineering where temperatures are not excessively low and demanding trekking at altitude. Features: Ankle Lock System Dual-Zone Contact Lacing System Enhanced Rocker Molded Heel Counter Semi-automatic crampons E.C.T. Rock insole A5 last Level of rigidity: 8 eVent® lining Molded Heel Counter midsole + Shock absorber microporous Vibram® Mulaz sole Microfiber + Suede + Ultra-Resistant Nylon upper 800 g WOMAN 780 g.