A climbing brush is an essential tool for maintaining the quality of holds, whether you’re bouldering in a gym or tackling outdoor routes. A good brush can help remove chalk, dirt, and grime, restoring holds to their optimal friction and ensuring better grip. In this guide, we’ll explore the best climbing brushes on the market, their unique features, and how to choose the right one for your climbing needs. In my experience, a good brush can make a world of difference especially on really small holds where friction is essential.

Table of Contents
Why You Need a Climbing Brush
Climbing holds lose grip over time as they accumulate chalk, sweat, and dirt. A climbing brush helps restore friction by cleaning the holds’ surface, making them safer and more effective. For outdoor bouldering, brushes can also clean away debris like moss or dirt, keeping holds climbable.
My Favorite Climbing Brushes
Sublime Climbing Brush
Best For: Durable and eco-friendly materials.
The Sublime Climbing Brush is a favorite among climbers for its ergonomic design and ability to clean even the smallest crevices.
- Key Features:
- Made from high-quality boar’s hair bristles for excellent cleaning without damaging holds.
- Ergonomic handle for comfortable use.
- Compact and lightweight design.
- Why It’s Great: I’ve found the Sublime brush to be a reliable choice for both indoor and outdoor climbing. Its durable, eco-friendly construction holds up over time, making it a go-to for keeping holds clean and grippy session after session.
Lapis Boar Hair Brush
Best For: High-performance bouldering.
The Lapis Boar Hair Brush is known for its dense bristles and excellent ability to clean holds thoroughly.
- Key Features:
- Premium boar’s hair bristles for effective chalk removal.
- Long handle for reaching tricky holds.
- Minimalistic design focused on performance.
I’ve relied on this brush for tackling tough, textured holds that need a deep clean. Its sturdy design delivers powerful cleaning, making it an essential tool for keeping friction high on both gym and outdoor problems.

Metolius M-16 Bouldering Brush
Best For: Cleaning small holds and edges.
The Metolius M-16 Brush is compact and perfect for cleaning intricate features on holds, making it a great option for climbers working on technical problems.
- Key Features:
- Dual-textured bristles for varied cleaning needs.
- Compact size for precise cleaning.
- Durable plastic handle.
I’ve found its small size and angled design perfect for reaching into tight spaces on crimps and edges. It’s a must-have for keeping even the smallest holds clean and grippy.
FrictionLabs Secret Stuff Brush
Best For: All-purpose cleaning with modern design.
FrictionLabs, known for its climbing chalk, also offers an excellent climbing brush designed for versatile cleaning.
- Key Features:
- High-density boar’s hair bristles.
- Sleek wooden handle with a comfortable grip.
- Compact design for portability.
I love this brush for its blend of style and function. It’s a sleek, effective tool that keeps both indoor and outdoor holds clean, making every session feel smoother and more efficient.
Black Diamond Bouldering Brush
Best For: Versatile and durable cleaning.
Black Diamond’s Bouldering Brush is a solid choice for climbers who want a reliable brush for all types of holds.
- Key Features:
- Dual-density bristles for tough cleaning jobs.
- Ergonomic handle for comfort during extended brushing.
- Sturdy build for long-term use.
Black Diamond has always been a trusted name in climbing gear, and their brush is no exception. I’ve found it to be a versatile tool that works well on any climbing surface, making it a solid addition to my kit.

How to Choose the Best Climbing Brush
When selecting a climbing brush, consider the following factors:
- Bristle Material: Boar’s hair bristles are the gold standard for climbing brushes, offering effective cleaning without damaging holds. Nylon bristles are also available but may be less effective on delicate surfaces.
- Handle Design: Ergonomic handles make brushing easier and more comfortable, especially for outdoor sessions.
- Size: Compact brushes are great for precise cleaning, while larger brushes work well on big holds.
- Durability: Look for brushes made from high-quality materials to ensure they last through many climbs.
Tips for Using a Climbing Brush
- Brush Lightly: Avoid scrubbing too hard, as excessive brushing can damage the texture of holds, especially on softer rock or gym holds.
- Target Chalk Build-Up: Focus on areas where chalk has accumulated to restore grip.
- Clean After Use: Outdoor climbers should clean holds after a session to maintain the rock’s natural surface for others.
- Portable Options: Use a brush with a clip or strap for easy attachment to your chalk bag during climbs.
- Care for Your Brush: Rinse your brush after outdoor use to remove dirt and debris from the bristles.
A good climbing brush is a small but vital piece of gear that enhances your climbing experience by keeping holds clean and grippy. Whether you’re bouldering indoors or climbing outdoors, investing in a quality brush like the Sublime Climbing Brush or the Lapis Boar Hair Brush ensures better performance and long-lasting use.
With so many excellent options available, there’s a perfect climbing brush for every type of climber. Choose wisely, and keep your holds in top condition for optimal climbing success.
FAQs
Why are boar’s hair bristles preferred for climbing brushes?
Boar’s hair bristles clean holds effectively without damaging their surface, making them ideal for both indoor and outdoor use.
Can I use a regular brush instead of a climbing brush?
Regular brushes may not have the right bristle density or material and could damage holds, especially textured surfaces or softer rock.
How often should I brush climbing holds?
Brush holds as needed, typically before attempting a route to ensure optimal grip. For outdoor holds, brush after your session to leave them clean for others.
Are nylon bristle brushes good for climbing holds?
Nylon bristles can work but are generally less effective and may damage delicate surfaces compared to boar’s hair.
What’s the best climbing brush for outdoor bouldering?
The Lapis Boar Hair Brush is an excellent choice for outdoor bouldering due to its durability and ability to clean holds thoroughly.