Therm-a-Rest® - Sleeping Pads, Bags & Outdoor Comfort

Do You Need a Waterproof Case for Backcountry Trips?

Do You Need a Waterproof Case for Backcountry Trips?

By Therm-a-Rest® - Sleeping Pads, Bags & Outdoor Comfort | Published: 2026-10-15

Category: How-to Guides

Decide when a waterproof case is worth the weight for backpacking, and when a dry bag or pack liner already covers your electronics protection.

Quick answer

You need a waterproof case if your phone, camera, or navigation device will be exposed to rain, splashes, or a river crossing while outside your pack. If your electronics stay sealed inside a pack liner or dry bag all day, a case is optional. For most three-season backpacking trips, one waterproof storage method plus a simple case for the device you keep in your pocket is the practical middle ground.

When a waterproof case earns its place on a backpacking trip

A case matters most when the device leaves your pack. If you navigate with your phone on a hipbelt or shoulder strap, it is exposed to rain, condensation, and the splash of a stream crossing. A case also helps on packrafting or canoe trips where a dry bag can be opened on the water and resealed. For trips where the phone stays inside a sealed liner until camp, a case adds weight without changing the outcome.

Waterproof case vs dry bag: which protects what

A dry bag protects a group of items you can seal once and leave closed. A case protects one device you need to reach, open, and use. Many backpackers carry both: a dry bag or pack liner for the sleeping bag and spare layers, and a small case for the phone or camera that stays accessible. If you only want one solution, choose based on how often you open it. Frequent access favors a case; all-day sealed storage favors a dry bag.

How to protect a phone in the backcountry without overpacking

Start by deciding whether the phone is a navigation tool or an emergency-only item. If it is navigation, keep it in a case you can operate with wet hands and check the seal before each trip. If it is emergency-only, a small dry bag inside your pack liner is enough. Whichever you choose, test it at home with a paper towel inside before you trust it with a device.

Matching waterproof storage to your pack and trip style

Large-capacity waterproof storage solves a different problem than a phone case. The Black Canyon Dry Pack is available in 65L and 115L sizes with waterproof construction and color options in Yellow, Blue, and Black. That makes it a fit for canoe trips, wet approaches, or gear-heavy basecamps where the whole load needs protection. It is not a substitute for a pocket-sized case, and a phone case will not keep a sleeping bag dry.

Backcountry electronics protection checklist

Will my phone get wet in a backpacking pack?
A pack is not waterproof unless it has a sealed liner or dry bag inside. Rain, condensation, and wet gear can all introduce moisture. If the phone stays in the pack all day, use a pack liner or dry bag before buying a case.
Is a waterproof case enough for a river crossing?
A case protects against splashes and brief immersion if the seal is clean and closed correctly. A dry bag inside your pack is safer for full submersion. Check the seal before every trip and keep the case closed until you are on dry ground.
Can I use a dry bag instead of a case?
Yes, if you do not need to use the device while it is raining or while you are on the water. A dry bag is lighter and cheaper for sealed storage. Choose a case for access, a dry bag for volume, and carry both when you need each job done well.

Gear facts that affect your decision

  • Black Canyon™ Dry Pack: The Black Canyon Dry Pack is available in 65L and 115L sizes with waterproof construction and color options in Yellow, Blue, and Black. Choose it when the whole load needs waterproof storage on wet trips, not as a replacement for a device case.
  • NeoLoft™ Sleeping Pad: The NeoLoft air pad merges ultralight pad innovation with car-camping comfort for backpacking. A comfortable pad reduces the temptation to leave the tent at night, so your electronics stay in the protected zone.

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