Ask a Thru-Hiker: What Are the Heaviest Gear Mistakes That New Thru-Hikers Make?

Bringing the wrong kind of clothes or food is a quick ticket to a hefty pack—but don’t go too far.

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Do you dream about hitting the trail for a long—really long—hike? In Ask a Thru-Hiker, record-setting long-distance hiker Liz “Snorkel” Thomas answers your burning questions about how to do it. Normally, you’d need to be an Outside+ member to read it, but we’re sharing this column with everyone to give you a taste of what you’re missing. Get Liz’s advice, plus all of Backpacker’s members-only skills coverage, in-depth stories from the trail, destination reports with interactive maps, full-length gear reviews, and more by becoming an Outside+ member today.

Dear Snorkel,

I’m hoping to thru-hike the Pacific Crest Trail this year, but I’m having trouble striking a balance between keeping my pack light and bringing everything I need. What common mistakes should I watch out for?

—Weighed Down and Worried

Dear Weighed Down,

When you’re on a long backpacking trip, every ounce you save from your pack reduces the strain you’re putting on your back, knees, and feet. But you don’t have to be a total minimalist to be comfortable in the backcountry. As thru-hikers say, you pack your fears: The stuff you carry often reflects what you are concerned about on a backpacking trip, whether that’s running out of food or getting too cold. Turn a critical eye to your gear, and you’ll avoid these common mistakes:

Packing cotton clothes: You’ve heard the mantra “cotton kills.” And while it may seem like a no-brainer not to bring your street clothes on the trail, it happens more often than you’d think. I’ve seen dozens of hikers start with a cotton hoodie or 7 pairs of cotton socks. Not only does cotton absorb more than 20 times its weight in water, it also takes forever to dry (hello, extra ounces). Once it’s gotten damp, it’s useless as an insulator, since water conducts heat away from the body faster than even the coldest air. As if that weren’t enough, it’s also bulky as heck. Bottom line: leave it at home.

Bringing too many clothes: Even first-timers informed enough not to bring cotton often bring too many layers. On its face, that makes sense: no one wants to be cold on a thru-hike. But packing for a trip down a long trail isn’t like packing for vacation. When you’re in the woods, there’s no one to impress with your snappy fashion. Almost everyone is happy wearing almost the same outfit day-after-day. (Will you smell? Yes. But you’ll get used to it.)

Bringing too much food, or too much of one kind of food: No one wants to run out of food when they’re far away from a grocery store, but that doesn’t mean you need to pack the whole supermarket. Portion out how much food you plan to eat for each meal, then up that amount to account for hiker hunger and add a little emergency food. (Plan on bringing between 2 and 2.5 pounds of food per day.) Even worse are the hikers who choose to bring a lot of one kind of food—oatmeal, peanut butter, et cetera. If you’re not willing to eat it, it’s just dead weight in your pack.

Packing the entire kitchen: Everyone dreams of the backcountry gourmet meals they’ll make for themselves and their new trail friends on a thru-hike. But the reality is that after a day of hiking, most people are too tired to turn into a chef. My advice is to start with a cooking pot and an eating utensil. If you find yourself missing your chef knife’s later, you can always pick one up.

I’ll leave you with one more caveat: There is such a thing as going too light. Inexperienced hikers on the PCT often think it’s OK to start without rain gear, a tent, or a sleeping bag. (Deserts are hot and dry, right?) But while the desert can be hot during the day, it can drop below freezing at night, and people have died of hypothermia in sudden rain storms. We carry gear on a thru-hike to provide an acceptable level of safety and comfort, and knowing the difference between the essential and superfluous makes all the difference.

Happy hiking,


From 2022

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