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Ken Knapp

REI Editor Emeritus Ken Knapp became a member in 1977 and went on to work for more than 36 years at the co-op. A father of daughters (thriving) and monitor of marmots (threatened), Ken is also a big fan of sustainability and sharing the ball.

Latest Articles

  • Gear Guides

    The Best Budget Sleeping Pads of 2024: Tested

    82 reviews with an average rating of 4.2 out of 5 stars

    Our five favorite sleeping pads for around $100 include options for backpacking and car camping, plus a variety of pad types and warmth ratings.

  • Skills

    How to Prevent Condensation in a Tent

    117 reviews with an average rating of 3.7 out of 5 stars

    We offer proven hacks to prevent condensation from forming in your tent. Learn how to make camping a little less wet at REI Expert Advice.

  • Buying Advice

    How to Choose Backcountry Ski Bindings

    29 reviews with an average rating of 4.5 out of 5 stars

    AT bindings allow you to lift your heels to stride uphill and then lock the heels in place for the descent. We help you sort out your choices.

  • Buying Advice

    The Difference Between Rim Brakes and Disc Bike Brakes

    47 reviews with an average rating of 3.8 out of 5 stars

    If you’re just getting into bikes, you might wonder why some have rim brakes and some have disc brakes. Learn the pros and cons of each design.

  • Skills

    How to Choose the Right Backpacking Stove Fuel

    34 reviews with an average rating of 3.5 out of 5 stars

    Because stove choice begins with fuel choice, it helps to know pros and cons of gas and liquid fuels. We also highlight some alternative fuel options.

  • Skills

    Avalanche Safety for Snowshoers

    4 reviews with an average rating of 4.8 out of 5 stars

    Snowshoeing is an easy, fun and relatively low-risk winter activity—as long as you follow a few basic guidelines about avoiding avalanches.

  • Buying Advice

    How to Pick the Most Breathable Fabrics

    167 reviews with an average rating of 3.6 out of 5 stars

    When the weather is hot, breathable fabric is a must. Learn what makes a fabric breathe well and what other features will help you stay cool.

  • Skills

    How to Cross-Country Ski

    149 reviews with an average rating of 4.4 out of 5 stars

    Learn the basics of classic cross-country skiing; tips in this video and article will help you get moving on Nordic skis quickly and easily.

  • Buying Advice

    How to Choose a Backpacking Tent

    360 reviews with an average rating of 4.1 out of 5 stars

    Learn how to shop for backpacking tents: We'll cover tent capacity, seasonality, weight, livability, setup and materials.

  • Skills

    Guide to Adaptive Camping

    31 reviews with an average rating of 3.9 out of 5 stars

    Two camping experts who use wheelchairs offer tips to help ensure you have a successful and enjoyable camping trip.

  • Skills

    Wildlife Safety Tips

    59 reviews with an average rating of 4.3 out of 5 stars

    Seeing wildlife can be a highlight of a day outside. But some up-close encounters can be a nuisance or dangerous. Learn more about wildlife encounters

  • Gear Guides

    The 6 Best Cycling Jackets of 2025: Staff Picks

    39 reviews with an average rating of 3.6 out of 5 stars

    A cycling jacket comes in handy when the weather takes a turn. We’ve gathered our top recommendations for however you ride.

  • Skills

    How to Protect Your Dog’s Paws in Winter

    26 reviews with an average rating of 3.8 out of 5 stars

    Winter can be hard on your dog’s paws. We offer tips on how protect them and to safeguard overall canine health during cold-weather outings.

  • Gear Guides

    The Best Camping Stoves and Grills: Staff Picks

    18 reviews with an average rating of 3.4 out of 5 stars

    The humble two-burner still reigns, but our quest for fire has evolved. Here are some of our favorite portable stoves and grills.

  • Buying Advice

    How to Choose Binoculars

    7524 reviews with an average rating of 4.4 out of 5 stars

    Numbers on binoculars can be a little confusing; this article explains basic specs, why prices differ so much and how to choose based on your end use.

  • Buying Advice

    How to Choose and Use an Avalanche Transceiver

    210 reviews with an average rating of 4.5 out of 5 stars

    Learn how to choose this safety essential for snow travelers. We cover avalanche transceiver features, use tips and trailhead transceiver checks.

  • Buying Advice

    Do I Need Cycling Socks?

    27 reviews with an average rating of 3.8 out of 5 stars

    Learn how cycling socks differ from socks designed for other activities and what you should look for when buying socks to wear while you ride your bike.

  • Buying Advice

    How to Choose an Electric Bike

    449 reviews with an average rating of 4.2 out of 5 stars

    E-bikes offer an efficient and fun way to get around. This primer helps you sort through your options for commuting, errands, trail riding and more.

  • Buying Advice

    Understanding Sleeping Bag Temperature Ratings

    101 reviews with an average rating of 3.5 out of 5 stars

    The key factor when you choose a sleeping bag is temperature rating. Here's how sleeping bags receive their comfort and lower-limit ratings.

  • Skills

    How to Recover From a Hike

    19 reviews with an average rating of 3.8 out of 5 stars

    Most hikers will experience post-trail fatigue, soreness and pain at some point. Learn to prevent issues, and get your body feeling good again.

  • Checklists

    Mountaineering Checklist

    227 reviews with an average rating of 3.3 out of 5 stars

    Our comprehensive checklist for mountaineering features required and optional gear, clothing and accessories.

  • Care and Repair

    How to Do End-of-Summer Gear Care

    19 reviews with an average rating of 4.7 out of 5 stars

    Learn how to take care of camping, hiking and other gear at the end of camping and hiking season. Get key tips on cleaning and storing gear, plus links to more in-depth care and repair articles.

  • Skills

    What to Wear Climbing Indoors

    46 reviews with an average rating of 3.9 out of 5 stars

    One appeal of indoor climbing is that you don’t need a lot of stuff to get started. Gyms will rent you the gear; we give advice on what to wear.

  • Buying Advice

    How to Buy Used Outdoor Gear and Clothing

    28 reviews with an average rating of 3.8 out of 5 stars

    Buying used outdoor gear and clothing saves money and keeps it out of landfills. Learn about resellers, shopping tips and how to sell your own gear.

  • Buying Advice

    What Is Down Fill Power?

    114 reviews with an average rating of 3.7 out of 5 stars

    Down fill power is an oft-stated number. We explain what this spec does and does not tell you about quality and warmth in a down jacket or bag.

  • Buying Advice

    What Does Moisture-Wicking Mean?

    117 reviews with an average rating of 3.7 out of 5 stars

    If you’ve ever wondered what “moisture wicking” means, we can help. Learn which fabrics wick and how they help you stay more comfortable outdoors.

  • Gear Guides

    The Best Gravel Bikes: Staff Picks

    17 reviews with an average rating of 3.9 out of 5 stars

    Gravel bikes handle both asphalt and dirt; our favorites include carbon- and aluminum-frame bicycles for weekend rides, gravel races or bikepacking.

  • Skills

    How to Skate Ski

    47 reviews with an average rating of 4.3 out of 5 stars

    Learn the basics of skate skiing; this video and article will explain the fundamentals of this fast and fun way to cross-country ski.

  • Gear Guides

    The 9 Best Sleeping Bags for Backpacking: Staff Picks

    4 reviews with an average rating of 4.0 out of 5 stars

    Our experts recommend these nine sleeping bags for backpacking, including top picks from REI Co-op, Mountain Hardwear, Big Agnes, Therm-a-Rest and NEMO.

  • Buying Advice

    How to Choose an Ice Axe

    102 reviews with an average rating of 4.3 out of 5 stars

    Find out how to choose the right ice axe for your intended use. Learn how to size your ice axe, the parts of an ice axe and key features to consider.