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Hiking Sock Liners

Best Hiking Sock Liners for Blister-Free Mountain Adventures in 2023

Embarking on a hiking adventure requires meticulous planning and preparation, especially when it comes to choosing your gear. From selecting the right backpack and the most comfortable shoes to making sure you have the correct hydration system in place, each detail plays a pivotal role. Among these essential pieces of gear are hiking sock liners, the unsung heroes of many successful and enjoyable hikes.

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The Role of Hiking Sock Liners

Hiking sock liners are thin, lightweight socks that are worn underneath your main hiking socks. They serve several critical roles that improve your hiking experience. First, they help reduce friction between your foot and your main sock, essentially moving with your foot and reducing the chance of hot spots and, subsequently, blisters.

Second, sock liners are designed with materials that wick moisture away from your feet, keeping them dry and comfortable. This moisture-wicking property further reduces the likelihood of blister formation. And lastly, they provide an additional layer of comfort, ensuring that your feet remain comfortable throughout your hike. Thus, the role of hiking sock liners in preventing blisters cannot be overstated.

What to Consider When Choosing Sock Liners for Hiking

When choosing hiking sock liners, several factors need to be considered.

Material: Sock liners are made from various materials, including synthetic fibers, silk, and wool. Synthetic liners are durable, dry quickly, and effectively wick moisture away. Silk liners are lightweight and smooth, offering superior comfort, while wool liners provide excellent warmth and natural antimicrobial properties. Each material has its advantages and disadvantages, and your choice will depend on your hiking conditions and personal preferences.

Size and Fit: It’s vital to choose a sock liner that fits correctly. Too loose, and it can bunch up and cause blisters. Too tight, and it can restrict circulation and cause discomfort. The liner should comfortably hug your foot without any constriction or excess material.

Comfort and Breathability: Comfort is king when it comes to hiking gear, and sock liners are no exception. They should feel soft against your skin and not cause any itchiness or irritation. Furthermore, they should allow for adequate ventilation, keeping your feet dry and comfortable throughout your hike.

Durability: Avid hikers need sock liners that can withstand the rigors of regular and prolonged use. Durable sock liners may cost more upfront but will need to be replaced less frequently, offering better value in the long run.

Warmth: Synthetic liners are designed for warm summer conditions and are light enough to avoid causing excess sweating. In winter conditions you should use merino wool liners which provide more insulation and warmth.

Our Top Picks for Hiking Sock Liners

I’ve tried many different types of sock liners hiking over the past 15 years. Here are some of my tried and true favorites for a variety of needs and situations:

Best for Summer: REI Co-op COOLMAX EcoMade Liner Crew Socks

These REI-made hiking sock liners are the gold standard at this price point – and exclusive to REI members. Join the Co-op, and you also receive 10% back on all your purchases. These liners use lightweight synthetic materials to keep your feet cool while reducing friction and keeping blisters at bay. They won’t last forever, so I recommend buying three pairs at a time to get an additional REI discount.

hiking sock liners for Colorado

Best for Toe Blisters: Injinji Liner Crew Socks

If you are prone to getting blisters in between and on your toes, you might want a pair of hiking sock liners that fit between each toe to prevent friction there as well. Injinji is known for this style of liner sock, designed with blisters in mind. They are a slightly more expensive option but you end up getting what you pay for. They also have a merino wool option available for cold weather conditions and winter expeditions.

Best for Winter: REI Co-op Merino Wool Liner Crew Socks

Another REI option for members is the Merino wool version of their hiking sock liners. With a warmer material that provides more insulation for your toes and feet while eliminating odor and wicking away moisture, it is a fantastic option for cold-weather climbing and winter trips in the mountains. I swear by them for skiing trips and winter 14er ascents. The extra cost is worth the value they provide.

Best for Performance: Icebreaker Hike Liner Crew Socks

For the coldest winter climbs and conditions, I turn to these Icebreaker liners available on You don’t need to be a member to buy them, and they’re the most durable liner option available. That comes with a premium price and fewer discount opportunities, so I recommend saving these for major mountain trips and expeditions and relying on more affordable opportunities for day trips and summer hikes.

How to Care for Your Hiking Sock Liners

Caring for your hiking sock liners is crucial in prolonging their lifespan and maintaining their effectiveness.

Cleaning: Most hiking sock liners can be machine washed on a gentle cycle with a mild detergent. However, make sure to check the manufacturer’s instructions. After washing, air dry your liners to maintain their shape and elasticity.

Inspection: Regularly inspect your sock liners for signs of wear and tear, like thinning material or holes. This will allow you to replace them before they fail during a hike.

Replacement: Even with the best care, sock liners will eventually need to be replaced. If you notice that they no longer provide the same level of comfort, or if they’re showing signs of significant wear, it’s time for a new pair.

Pairing Your Liners with the Right Hiking Socks

While sock liners are a valuable addition to your hiking gear, they work best when paired with the right hiking socks. Consider factors like the sock material, thickness, and fit, and ensure that your socks and liners work together to provide maximum comfort and moisture-wicking capabilities.

The Bigger Picture: Foot Care for Hikers

While hiking sock liners play a key role in preventing blisters, they’re only part of the overall foot care picture for hikers. Investing in the right footwear, maintaining foot hygiene, and knowing when to rest are just as important.

Hiking Sock Liners: The Last Word

Choosing the right hiking sock liners is a crucial part of your hiking preparation. By reducing friction, wicking away moisture, and adding an extra layer of comfort, they can make the difference between a memorable hiking adventure and an uncomfortable ordeal.

Frequently Asked Questions

A: Hiking sock liners reduce friction, wick away moisture, and provide an extra layer of comfort, all of which are crucial in preventing blisters.

A: Yes, but they work best with proper hiking socks that provide cushioning and further moisture-wicking capabilities.

A: This depends on how often you use them and how well you care for them, but generally, if they start showing signs of significant wear or no longer provide the same level of comfort, it’s time for a replacement.

A: Most can be machine washed on a gentle cycle with a mild detergent and should be air-dried.

A: Yes, but you may need different types of liners for different conditions. For instance, you might prefer synthetic liners for warm conditions and wool liners for colder hikes.

If worn consistently and sized appropriately, sock liners significantly, if not completely reduce your risk of developing blisters while hiking. They also keep your feet dry with their moisture-wicking qualities improving your comfort. I highly recommend them – they are more than worth the cost and provide more value in the long run.

Alex Derr, Founder of The Next Summit

Alex Derr is an Eagle Scout, climber, and environmental policy expert located in Denver, Colorado. He created The Next Summit to help others stay safe exploring the mountains and advocate to preserve the peaks for the future. Follow him on Linkedin or Twitter or click here to contact him.

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Hi, I'm Alex!

In 2018, I watched in disbelief as dozens of people hiked into a storm on Longs Peak, unaware of the extreme danger. Soon after, I started The Next Summit to educate and empower the public to safely and responsibly explore America's mountains.

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