Osprey Ultralight Pack Liner

Yes. The Medium size is specifically designed to fit packs in the 50-70 liter range, making it an ideal match for most standard backpacking setups.

It is fully waterproof. The combination of a secure roll-top closure and coated seams ensures your gear stays dry even during heavy rain or accidental submersion.

A pack liner acts as a single, cohesive barrier for your entire main compartment, which is often more efficient and lighter than using multiple smaller dry bags. It simplifies packing and ensures every item inside your pack is protected without the extra weight of multiple closures.

Absolutely. The rectangular design mimics the internal shape of most hiking backpacks, which helps eliminate dead space and allows you to pack your gear more efficiently compared to using a rounded stuff sack.

Yes, it is constructed from GRS-certified recycled fabric that balances lightweight performance with the durability needed for extended trekking. While it is not puncture-proof, it is robust enough to handle the wear and tear of standard trail use.