Thanks to the newly developed gripex™ Sonar winter sole featuring a proven circular lug arrangement and two different strength rubber blends, this extremely light winter hiking boot has perfect grip on wintry surfaces. The robust ripstop fabric, the blend of PU and synthetic leather and the fleecy GORE-TEX® Insulated Comfort Footwear BiPolar fleece lining create the perfect combination of durability, waterproof insulation and breathable comfort. Reflective inserts help to keep you safe in the dark.

Fabric:	PU Protection, Synthetic Leather, Dropstop Textile
Lining:	GORE-TEX® Insulated Comfort Footwear 80% PES / 20% WO
Last Index:	Hiking
Flex Index:	A4 A5 A6 A7 A8 A9 B1 B2 B3
Sole:	gripex Sonar Winter sole, EVA wedge
Weight:	1089 g Size UK 8.5 / per pair
Insulation:	-25 °C (EN ISO 20344)

Features:

• Rolling Concept
• Sonar Technology
• Board lasted
• The patented Mammut sole concept with customized support and cushioning to support natural foot roll, and thus prevent fatigue (danger of twisting).
• 100% guaranteed waterproof thanks to premium quality, high-fitting, sealed insert socks made of PTFC (PolyTetraFluorCarbone). With the warmest version is processed a layer from very warm, soft and highpiled Bipolar Fleece, lying inside.
• Fine-grained leather with an exterior protected by a coat of polyurethane to make it even more abrasion-resistant, tear-resistant and waterproof.
• This synthetic leather is hard to tell apart from genuine nubuck leather, except that it’s lighter and absorbs very little water.
• An amazingly light, pleasantly soft midsole material fashioned from compression-moulded EVA (ethylene vinyl acetate) with excellent damping properties.
• The unique tread construction, designed to ensure maximum transfer of braking and impetus force, is inspired by the concentric pattern created sonar waves. This guarantees high lateral edge stability for steep traverses, a secure grip on slippery surfaces thanks to the flexible ribs and an integrated longitudinal arch support. The flexible ribs integrated in the wedge and the patented Rolling Concept ensure a rounded rolling movement combined with ergonomic support and cushioning.
• The unique tread construction, designed to ensure maximum transfer of braking and impetus force, is inspired by the concentric pattern created by sonar waves. This guarantees high lateral edge stability for steep traverses, while two rubber blends with different hardnesses and the large lug depth ensure slip resistance on varied winter terrain. The flexible ribs integrated in the wedge and the patented Rolling Concept® ensure a rounded rolling movement combined with ergonomic support and cushioning.

Areas of use: Winterhiking / Snowshoeing