Hilltop Packs - UL Backpack Liner

Most backpackers use a trash compactor bag or nylofume bags to keep their gear dry. It works… until it doesn't. Trash bags or other thin plastic bags rip and tear over time, leak after a few weeks, fall apart in your pack, and turn into trash you have to pack out.

Our Ultralight Pack Liner solves that, for the same trip count you'd cycle through 10+ trash bags, you get one liner that keeps going for years.

Large - 21" × 35.25" flat · 3.85 oz · For 50–70 L packs

• Do I really need a pack liner if my pack is "waterproof"?
  Most backpacks are water-resistant, not waterproof. Sustained rain, river crossings, and condensation will soak through eventually. A pack liner is the difference between dry sleep and a miserable night.
• Trash compactor bag vs Pack liner - what's the real difference?
  Trash bags work in a pinch. They rip on rough gear, leak after a few weeks, and you'll cycle through them constantly. A Hilltop Pack Liner pays for itself within a season of regular backpacking - and lasts years.
• Will this fit inside my backpack?
  Use the volume guide above. The liner is meant to be slightly larger than your pack interior so you can roll the top closed. If you're between sizes, go larger.
• How do I close it?
  Roll the top 3–5 times and clip or just tuck. The taped seams keep water out from the bottom and sides; rolling the top creates a waterproof seal.
• What if it fails?
  5-year warranty. If a seam fails or fabric tears under normal use, we fix it free.