Published on: 24/04/25 1:06 AM by Oliver (Climb Torridon)

There’s a massive range of footwear people use when heading to the hills, from lightweight running trainers right through to fully rigid ‘B3’ winter boots. Choosing the right footwear is crucial for comfort, performance, and safety in the mountains. This document aims to provide a comprehensive guide to help you make an informed choice for any trip, considering what to wear, when to wear it, and why.

Key Considerations When Choosing Footwear

Before diving into specific boot types, let’s explore the key characteristics that differentiate them:

Stiffness

This refers to the rigidity of the sole. Stiffer soles are vital for saving the small muscles in your feet from overworking when standing on small edges during scrambling or mountaineering. This rigidity also allows for effective ‘edging’ – using the side of your boot for grip – on soft terrain such as snow or grassy slopes. Think of it as a stable platform that reduces strain and enhances precision.

Support

The height of a boot’s cuff around your ankle directly correlates with the level of support it offers. Higher cuffs help stabilize the ankle joint, preventing excessive movement and reducing muscle fatigue, especially on uneven terrain. However, experienced individuals with strong ankles might find high support restrictive to their natural range of motion. It’s a balance between protection and freedom of movement.

Weight

In the realm of hillwalking and mountaineering, every gram counts. Weight on your feet is the most energy-sapping location for extra mass due to the mechanics of walking. Therefore, a lighter boot invariably leads to less fatigue over long distances. This benefit, however, often involves a trade-off against the boot’s overall robustness and durability.

Packability

For expeditions or day trips that necessitate carrying different types of footwear (e.g., approach shoes for the initial hike and climbing boots for the ascent), packability becomes a significant factor. How easily can the boot or shoe be stowed inside or strapped onto your backpack without taking up excessive space or adding unnecessary bulk?

Waterproofing

This is a critical consideration in the often damp and unpredictable conditions of the hills. However, achieving complete waterproofing often comes at the cost of breathability. A waterproof membrane can trap heat and sweat inside the boot, leading to discomfort and increasing the risk of blisters and sores. The key is to match the level of waterproofing to the expected terrain and weather conditions.

Warmth

Particularly important in winter or at high altitudes, insulation is crucial for preventing cold injuries like frostbite to your toes and feet. Consider the level of warmth your footwear provides in relation to the anticipated temperatures and duration of your trip.

A Word on Socks

Never underestimate the importance of socks! A different sock can significantly alter the warmth, fit, and even the perceived level of waterproofing of your footwear. Choosing an appropriate sock that works well in conjunction with your boots or shoes is paramount for comfort and performance. When purchasing new footwear, always try it on with the same or similar socks that you intend to use in the field.

Boot Rating

To standardize the assessment of a boot’s stiffness and suitability for use with crampons in snowy conditions, a rating system is employed:

  • B0 – Soft and flexible: These boots have minimal stiffness and can be easily bent. They are not suitable for crampons.
  • B1 – Some stiffness but possible to bend: These boots offer a degree of stiffness but still allow for some flex in the sole. They typically feature a heel clip for attaching C1 rated crampons.
  • B2 – Stiff and hard to bend with a heel clip: These boots have a significantly stiffer sole that is difficult to bend. They possess a heel clip and are suitable for C2 rated crampons.
  • B3 – Very stiff / impossible to bend with a toe and heel clip: These are the stiffest category of boots with virtually no flex. They feature both toe and heel clips, making them compatible with C3 rated crampons.

Types of Footwear and Their Uses

Let’s explore the different categories of footwear commonly used in the hills:

Fell Shoes / Approach Shoes / Running Trainers

These are the mountain-specific variations of athletic footwear. Characterized by their lightweight construction, they come in a vast array of options tailored for specific activities like running on boggy terrain or scrambling over rocky surfaces. The sheer variety allows you to select something that perfectly matches your needs and foot shape.

Pros:

  • Lightweight
  • Packable (ideal for carrying when climbing)
  • Strong ground feedback due to their flexibility
  • Limited support

Cons:

  • Poor at preventing debris from entering
  • Inadequate waterproofing even with linings
  • Poor insulation
  • Less robust leading to quicker wear

Use:

  • Experts traveling fast and light, simple tracks, rocky terrain, warm conditions.

Light Weight Flexible Boots and ‘Mid’ Approach Shoes Variants

These boots are constructed from soft, flexible fabrics and often feature a slightly higher ankle cuff for added protection. Similar to fell shoes, a wide range of styles and features are available.

Pros:

  • Lightweight
  • Ankle height provides protection against stones and debris
  • Strong ground feedback
  • Offer some support for weaker ankles and help reduce fatigue

Cons:

  • Waterproofing is generally poor, even with waterproof linings
  • Poor insulation from the cold
  • Less robust resulting in faster wear

Use: Rocky mountainous terrain and tracks, exercise caution on steep grass where they can be less effective.

Traditional Leather Boots and Robust Trekking Boots

These are the classic hillwalking boots, typically made from durable leather and designed for longevity. Many users rely on the same pair for years, testament to their robustness.

Pros:

  • Robust and long-lasting
  • High level of waterproofing
  • Stiffer edges provide support on steep grass
  • High level of ankle support to aid with fatigue and support weaker ankles
  • Can accommodate a light B1 crampon for winter walking on simple terrain

Cons:

  • Tend to offer less feedback on rocky terrain
  • Can feel ‘clumpy’ and less agile on rocky paths
  • Heavy and tiring, especially on hard surfaces like tarmac or rocky trails

Use: Walking over moorland and damp mountainous terrain, long-distance rough treks where the majority of the time is spent on softer surfaces, off-path walking.

Stiffened Mountaineering Boots (B2)

This category encompasses a broad spectrum of modern boots engineered for more technical mountaineering and scrambling. Support and stiffness levels can vary significantly, with some models excelling in summer conditions while others are better suited for cooler temperatures.

Pros:

  • Robust and long-lasting
  • High level of support
  • Shaped for effective ‘edging’ during scrambles or climbs
  • Stiffened soles provide support on steep terrain (grass or rock)
  • Compatible with C2 crampons
  • Perform well in snow although often not warm enough for full winter use

Cons:

  • Can be hard on the feet during extended periods of walking
  • The specialized shape can make achieving a proper fit challenging, especially for those unfamiliar with this type of boot
  • Heavier than lightweight boots

Use: Versatile for year-round use but particularly well-suited for spring and autumn conditions. Mountain leaders often prefer this type of footwear for its adaptability across varied terrain.

Fully Ridged Winter Boots (B3)

Designed for the most demanding cold, wet, and steep environments, these boots offer maximum support and warmth. They are essential for winter climbing and expeditions in extremely cold conditions.

Pros:

  • Robust and long-lasting
  • Very supportive
  • Exceptionally warm for standing in cold conditions
  • Highly waterproof

Cons:

  • Uncomfortable or hard on the feet when walking on firm surfaces
  • Similar to B2 boots, the fit is often optimized for climbing, potentially making them difficult to fit correctly
  • Expensive with a limited range of options, particularly for women or those with smaller feet
  • Can feel heavy and cumbersome for actual climbing

Use: Climbing and mountaineering in snowy and icy conditions.

Specialist Footwear e.g. Wellies, Sandals, Rockshoes

Beyond the main categories, other footwear plays a role in specific mountain activities:

  • Wellies: Excellent for boggy, wet approaches to crags.
  • Sandals: Ideal for keeping feet cool between climbs on sport climbing trips in warmer climates and useful for river crossings, especially lighter options.
  • Rockshoes: Provide the ultimate precision for foot placement while climbing.

Other Considerations

Fit

This might seem obvious, but the fact is that everyone’s feet are unique. Manufacturers strive to create well-fitting footwear using an ‘average’ foot shape called a ‘last’. Different lasts are used for different types of footwear (e.g., rock shoes vs. trainers), and individual manufacturers often have distinct last shapes. Finding a brand and last that suits your foot shape and sticking with their range can significantly improve comfort and performance.

Soles

The tread pattern and the type of rubber used in the sole profoundly impact grip on various surfaces. Harder rubbers tend to perform better on soft, wet ground and are more durable, while softer rubbers offer superior grip on rock and hard surfaces but wear out more quickly. The stiffness of the sole also contributes significantly to the overall stiffness of the boot.

Weatherproofing

Like technical clothing, footwear needs to balance breathability (allowing heat and sweat to escape) with the ability to keep water out, ensuring your feet remain dry. The materials used in the upper, any applied waxing or proofing treatments, and the boot’s lining all contribute to its weatherproofing capabilities. Thicker, more robust materials generally offer better weather protection and durability but often come with increased weight.

Crampon Compatibility for Winter

If you plan on venturing into the mountains during winter, the ability to attach crampons (or microspikes) to your footwear is essential.

(Aside: Take microspikes for lower-angled walks or when there’s ice or a light dusting of snow. Opt for crampons for mountaineering, climbing, or walking when there’s a significant build-up of snow. When in doubt, it’s safer to carry crampons.)

Crampons are rated as C1, C2, or C3, and they require a compatible boot to function safely and effectively.

Some Examples

To illustrate the principles discussed, here are some examples of footwear choices for specific mountain adventures:

Skye Cuillin Ridge Traverse

A mid-height approach shoe such as the La Sportiva TX4 MID Evo. These offer excellent grip on the rocky terrain, a sufficiently high ankle to keep debris out, and a lightweight feel to minimize fatigue on long days navigating the Skye Cuillin Guides recommended routes.

Liathach Summer Traverse

Similar to the Cuillin Ridge, a mid-height approach shoe is ideal. The combination of good rocky tracks for access and descent, coupled with the rocky nature of the Liathach traverse itself, prioritizes grip over extensive waterproofing.

An Teallach Traverse on a wet day

A traditional boot or stiffened Mountaineering Boot (B2) like the Scarpa Ribelle HD light would be a wise choice. The trails around An Teallach can be boggy, and the traverse is long, so supportive footwear with good waterproofing is beneficial. On a dry day, a lighter boot similar to those used on Liathach or Skye might suffice.

The Beinn Eighe Nature Reserve Mountain Trail

Light walking boots, such as the Scarpa Marmalade Trek, are well-suited for this well-maintained path that allows you to explore this scenic area.

A Winter Mountaineering Experience tackling the Black Carl’s

A Fully Ridged Winter Mountaineering B3 boot, such as the La Sportiva Nepal Extremes, will provide the necessary support and confidence on this challenging terrain, although experienced climbers might manage in suitable B2 boots.

Winter Climb of Poachers Fall (V 5) on Liathach

Fully Ridged Winter Mountaineering B3 boots, like the Scarpa Phantom Tech HD, are essential for the technical demands and cold conditions of this climb.

Working As a Mountain Leader in the Fisherfields

Traditional boots or stiffened Mountaineering Boots are generally preferred for the boggy and rough terrain encountered while leading groups. However, during extended dry periods, a lighter boot option might be suitable for those holding relevant Mountain Leader Courses qualifications and experience.

Ollie

Thank you for reading,
Ollie

Winter Mountaineering and Climbing Instructor (WMCI) and Lead Guide @ Climb Torridon