Going high? Headed into extremely cold regions? Go with the G1 CLASSIC which provides warmth, breathability and the natural feel and fit that only leather can provide.The G1outer boot, hand crafted from 2.8 mm split leather is backed by waterproof-breathable Sympatex membrane, 6 milimeters of micro-porous EVA foam insulation and a cordura lining... to keep your feet perfectly dry and warm. Underfoot, twin layers of 2mm Neoprene (perforated for breathability and shock absorption) plus an additional 10 mm of EVA foam insulation further resists cold penetration.
Connecting you to the earth or any crampon is Boreal's MOUNT FDS-3 outsole with triple density co-molded rubber for the right combination of traction, shock absorption, durability and insulation.
The G1's inner boot is slip lasted (just like rock shoes) for a good fit and is made with various features: a waterproof split leather collar and tongue, a padded Achilles with adjustable velcro-elastic strap (for heel retention) plus a unique raised heel that keys into a corresponding cavity in the floor of the outer boot. The bootie has a durable Cordura outer, another layer of Sympatex (redundant protection), Thinsulate for warmth and an efficient wicking Dry Line inner surface.
The G1excels at technical mountain routes and high altitude expedition style climbing. Wear yours for extremely cold winter mountaineering in New England, the Rockies and all peaks up to 7,000 M. Add a SuperGaiter for the coldest of the cold - and warmth equal to the G1 EXPEDITION.
Sizing: If a US 10.5 fits well in a hiking boot, then order a UK 10 for a similar fit. Made in Spain.