FEATURES of the La Sportiva Olympus Mons EVO Boot PE thermal insulating inner boot combined with a synthetic insulated thermo-reflective outer boot for a toasty warm performance fit Highly insulated vibram polyethylene sole with rubber edging platform and TPU midsole for excellent step-in crampon compatibility SPECIFICATIONS of the La Sportiva Olympus Mons EVO Boot Weight: 39.86 oz / 1130 g Outer Boot: Cordura upper lined with dual-density PE micro-cellular thermal insulating closed-cell foam and thermo reflective aluminum facing/ Insulated removable footbed/ Vibram rubber rand Gaiter: Breathable Cordura/ Kevlar anti-perforation fabric Inner Boot: Water repellant breathable upper with polyamide external layer/ Dual-density PE thermal insulating micro-perforated ventilated foam/ Tri-dimensional structured polyester lining combined with pile Insole: 5mm Carbon Fiber 2.5 mm PE micro-cellular thermal insulating closed cell foam topped with a thermo reflective aluminum layer reinforced with perforated hydrophobic non-woven facing Midsole: TPU/ Micropore EVA Sole: Vibram PE with rubber toe inserts Construction: Inner Boot: Slip Lasted, Outer Boot: Board Lasted Last: Olympus Mons This product can only be shipped within the United States. Please don’t hate us.