Even the best gear can let water in over time. DWR-treated nylon still allows rain to pass through if exposed for extended periods or under heavy pressure.
A rain cover is your first line of defense against wet weather. It keeps water off your pack, keeping it dry and light.
Pack liners provide an additional layer of protection. While a cover keeps the outside dry, a liner is a waterproof bag inside your pack that keeps your gear safe even if your whole pack gets soaked during a river crossing or swim.
For the best protection in tough conditions, use both a rain cover and a pack liner.
The Waterproofing Capability Profile
This accessory helps keep water from leaking in through seams and zippers.
Covers: Convenience vs. Aerodynamics
Rain covers are easy to use. You can keep one in an outer pocket and put it on your pack in just a few seconds.
In strong winds, covers can flap or blow off. Choose covers with a cinch cord and a strap behind the back panel to keep them secure.
Liners: Submersion Security
Many people use the trash compactor method. This means putting a pack liner—such as a heavy-duty trash bag or a special silnylon sack—into the main compartment of your pack.
It blocks wind and will not catch on branches. For thru-hikers who need to be sure their sleeping bag stays dry at camp, it is the best choice.
Visibility and Safety
Be seen. Rain usually means low visibility and gray skies. Rain covers are an excellent place to use high-visibility neon colors or reflective logos. This safety feature ensures you remain visible to drivers on a road walk or to search-and-rescue teams in an emergency.
Best Rain Protection for Backpacks
We found several waterproofing options to help you choose between an external cover and an internal liner. We looked at buyer feedback to rank these covers. Choose products rated Exceptional or Excellent for the best reliability. Good options offer value but may have some minor trade-offs, according to user reviews. See our Methodology.
