The Aku Alterra GTX is a versatile trekking boot, designed for medium difficulty and duration trekking over mixed terrain. The upper is made without gusset using elastic material for the tongue and collar to ensure a truly comfortable fit. The asymmetric construction of the outsole with exclusive AKU Elica technology ensures excellent load distribution over the plantar surface and outstanding improvement of foot roll. Elica is an exclusive AKU system that integrates the last – insole – midsole – tread, tracing the anatomical shape of the sole of the foot. It has been certified that the Elica technology promotes comfort, reduces impact with the ground and effort when walking. ANATOMICAL FIT, comfortable and enveloping anatomical shapes for footwear in the Trekking segment, designed to offer comfort and stability and to promote dynamic action when walking on mountain trails with uneven ground. UPPER: suede +stretch fabric

UPPER PROTECTION: liba® smart pu

LINING DESCRIPTION: gore-tex® performance comfort

OUTSOLE: vibram® octopus

MIDSOLE: double density pu

LASTING BOARD (STIFFNESS): nylon +die cut eva (medium)

FOOTBED: custom fit ims

MEN’S WEIGHT (GR. ½ PAIR): 670