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Boreal Siula

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Boreal Siula

£490.00 £343.00

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The Boreal Siula is a waterproof, lightweight double boot consisting of an outer boot and a removable inner boot.

The Boreal Siula is suitable for intense to extremely cold conditions, high mountain and altitude climbing and long winter alpine ascents. The outer boot has an integral gaiter constructed from two materials. The inner portion of gaiter in extra abrasion resistant material with waterproof membrane. The outer portion of gaiter in abrasion resistant and highly breathable material with Sympatex® membrane. The shell is waterproof and reinforced one piece. Highly abrasion resistant Cordura liner with membrane and a thick insulation.Both the inner and outer boot have an anti-slip heel lug to assure a precise inner boot location and secure hold on the outside. Finally, for superior torsion control, the midsole has added lateral reinforcements.

    • Construction consists of liner, shell and integrated gaiter
    • Waterproof
    • Thermally insulating
    • Highly abrasion resistant
    • Liner with Thermal Layer System of Dry Line®, Thinsulate, Sympatex®, Codrira®
    • Thermally welded seams of the liner
    • Non-slip sole made of neoprene
    • Contoured, padded tongue
    • Waterproof, insulated and robust shell of 2.8 mm leather without seams
    • Multilayer shell lining with Cordura®, Sympatex®, EVA, PES foam
    • Reinforced instep zone
    • Insulating and stabilizing XTP insole PBG-680
    • Stable, crampon-compatible sole construction
    • Grippy Virbram® Teton outsole
    • Crampon compatible: automatic; TPU heel and toe piece 
  • Last: Unisex | Category: D | Weight: 2,540 g (pair, UK 7) | Upper: polyester, polyamide, polyethylene, EVA | Lining:polyester, polyamide, EVA, chloroprene rubber | Sole: polyurethane, EVA, rubber