Women's Keen Outdoor Zionic ADV Hiking Shoes The KEEN Zionic ADV is a women's open-air hiking shoe built for fast-moving trail wear. This low-top style combines an abrasion-resistant woven mesh upper with a quick-cinch closure for breathable coverage and an easy adjustable fit. Katalyze+ cushioning is designed to deliver a softer, more responsive ride, while the aggressive studded lug pattern helps provide traction across varied terrain.