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Bi-Flex

Bi-Flex is a system developed by Boreal to improve the forward and lateral flexibility of mountain boots around the ankle area. Bi-Flex greatly enhances both the walking comfort and freedom of movement when climbing.


Mountain boots with uppers made from stiff materials can restrict the natural articulation of the ankle joint causing discomfort when walking and restricting the freedom of movement when climbing. 

Bi-Flex eliminates this problem by carefully positioning panels of soft pliable materials in specific areas of the upper. These soft compressible panels act like hinges to allow the natural articulation of the ankle in both the lateral and fore/aft directions. Hard incompressible components such as lace eyelets are either made from soft textile materials instead or repositioned so as to not cause pressure points or impede articulation. Bi-Flex greatly enhancing the ergonomics and comfort of high ankle mountain boots.

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Comfort Flex System

CFS is a system to improve the flexibility of hiking boots around the ankle area in a fore/aft direction. CFS greatly enhances the ergonomics of the boot resulting in a more natural and comfortable walking action.

Hiking boots with uppers made from stiff materials can restrict the natural articulation of the ankle joint causing discomfort when walking.  CFS answers this problem by carefully positioning panels of soft pliable materials in specific areas of the upper. These soft compressible panels act like hinges to allow the natural articulation of the ankle in a fore/aft direction.

Hard incompressible components such as lace eyelets are either made from soft textile materials instead or repositioned so as to not cause pressure points or impede articulation.  CFS greatly enhancing the ergonomics of hiking boots is resulting in a more comfortable and natural walking action.

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Heel Fit System
The Heel Fit System (HFS) consists of anatomically sculpted pieces of foam padding which hold the heel comfortably and securely in place to avoid unwanted movement.




Trekking boots require a snug fit around the heel area to prevent unwanted movement which can lead to excessive friction and blisters. HFS is a system of anatomically shaped high quality foam padding which helps to comfortably hold the heel securely whilst accommodating different heel shapes.

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Ref. 47230 NELION
Nelion

Nelion is a leather mountain boot brought up to date with a modern design and a lightweight and superbly cushioned sole unit platform. Boreal has been manufacturing leather mountain boots for 40 years and nothing beats traditional leather for long-term reliability. 

Product Info
  • UPPERS: One piece premium quality waterproof and reinforced 2,6 mm Split leather and Lorica. Bi-Flex system for superior flexion and comfort. HFS padded heel system for a perfect fit. Rubber rand for protection

  • LINING: Boreal Dry-Line® for absolute waterproofness and superior breathability

  • MIDSOLE: Boreal PBG-650 with lateral reinforcements for torsion control. Shock absorbing EVA foam layer for enhanced comfort and underfoot insulation

  • SOLE: New Vibram Mulaz outsole with dual density, shock absorbing PU and EVA under the heel for comfort. TPU heel piece for semi-automatic crampons. Stabilizer TPU piece in metatarsal zone

  • USAGE: Summer alpinism. Winter mountain walking. Scrambling. Glacial travel

  • WEIGHT: 1689 grs./pair (size 7 UK)

Features

  • Nelion is non-insulated and so is ideally suited to summer alpine use when highly insulated boots are often too warm, or for lower altitude winter mountaineering in less severe temperatures. The upper is made from premium quality one-piece split leather and features our unique Dry-Line® lining which is fully waterproof and has an unrivalled ability to transport moisture vapor away from the foot. Nelion is slightly more flexible than B3 category boots meaning it is more comfortable for walking and can comfortably be used for trekking extended distances. 

     

  • The underfoot comfort of the Nelion is further greatly enhanced by our new midsole which has a soft cushioned EVA top surface and a new sole unit platform with extra cushioning under the heel area and improved torsional support. Nelion is compatible with semi-automatic crampons and is suitable for less technical winter climbing and glacial travel as well as being great for scrambling, mountain walking and general summer alpinism. The high quality Vibram® New Mulaz rubber outsole features a climbing zone under the toes and offers excellent grip on a wide range of surfaces.