Structure with waterproof membrane sock, leather upper, turn-up leg, back and front tie rod, 'brisa' sheepskin turn-up, laces made of recycled polyester fibers, sheepskin lining, 'uggplush' insole, 'pu' inner sole, sugar cane eva midsole, 'vibram' sole with 'icetrek' rubber compound, '3m xerogel' insulation, 'drytech' technology