The Batura 2 GTX is a phenomenally lightweight boot for full on Alpine winter ascents & high altitude mountaineering where you expect to encounter ice or mixed climbing in cold & wet conditions. The unique construction uses a waterproof & extremely durable stretch Gore-Tex integrated gaiter over an inner boot with double layered Gore-Tex for waterproofing, warmth & excellent breathability. The inner boot is also insulated with Polyethylene & an insulating aluminium construction to keep you warm & comfortable in wet snow & freezing conditions. The fabric construction allows superb flexibility without sacrificing support, allowing both comfortable walk ins & full front pointing capabilities. A stiff 3mm honeycomb carbon midsole supports your foot & creates air chambers for better insulation & complete support & rigidity when front pointing or climbing. Shock absorption is provided by 8mm TPU & PU inserts & the ingenious SBR Aircushion, a state of the art modern one-piece synthetic rubber outsole that incorporates both an outer sole, the bit you can see, & an inner integral midsole which provides shock absorption. A honeycomb heel grid flexes upon impact & a softer density rubber forms a midsole cushion from heel to toe while the dense rubber outsole supplies abrasion resistance. The Vibram out sole has deep lugs for looser conditions & a dedicated climbing zone under the big toe area. This durable & versatile sole uses La Sportivas unique Impact Braking System where the lugs of the sole are oriented in opposing slanted directions. This opposition increases braking power by an average of 20% & decreases impact forces by an average of 20% making long descents more controlled & comfortable. New 2-layer GORE technology for the ultimate cold weather protection & comfort PU midsole for soft resilient comfort when walking Asymmetrical waterproof durable zipper for excellent outer gaiter fit Super lightweight insulating honeycomb carbon midsole for rigidity Impact Brake System Vibram sole unit with SBR Air Cushion