Designed for different uses in alpine environments, the Aku Women's Hayatsuki GTX Alpine Boot is perfect on difficult and mixed terrain (mountaineering routes on ice and rock at high altitudes up to 4000 meters) as well as for the most demanding hiking. It is made with the highest quality materials and with details designed to offer an excellent level of comfort and performance. The large joint on the instep and heel allows for optimal wrapping and hold of the foot and freedom of movement. The sole with IMS3 system, built with PU with different densities, allows for optimal cushioning on all types of terrain, while the Exoskeleton construction provides stability and protection. It is designed for the use of both traditional and automatic crampons. The Vibram Curcuma rubber tread provides grip and safety.

UPPER: PERWANGER 3.0 MM + ELASTIC TEXTILE + AIR8000
UPPER PROTECTION: RUBBER BANDER + LIBA SMART PU
LINING: GORE-TEX INSULATED COMFORT + PRIMALOFT INSERTS
TREAD: VIBRAM CURCUMA
MIDSOLE: DOUBLE DENSITY PU EXOSKELETON LASTING FOOTBOARD
(RIGIDITY): 6-4 MM GLASS FIBRE + MICROPOROUS EVA (X RIGID)
FOOTBED: CUSTOM FIT PRO ALUM
WOMEN'S WEIGHT: (GR. PAIR) 770
WOMEN'S SIZES: (UK) 5 - 9