Osprey DrySack

Yes, the see-through window is integrated into the durable, recycled fabric construction, designed to withstand the same wear and tear as the rest of the sack while providing clear visibility of your gear.

To achieve a waterproof seal, roll the top closure down at least three times and secure the buckle. This creates a tight barrier that prevents water from entering the main compartment.

While the roll-top design provides excellent protection against rain, splashes, and brief immersion, it is not intended for prolonged underwater submersion. We recommend using additional protective cases for sensitive electronics.

The DWR (Durable Water Repellent) treatment is free of PFAS chemicals, which are often used in traditional coatings but are harmful to the environment. This sack uses a more sustainable alternative that still effectively sheds water and moisture from the fabric surface.

The 3L size is ideal for small essentials like a headlamp, first-aid kit, or extra socks. Since this is part of a coordinated system, you can mix and match the 3L with larger volumes to categorize your gear effectively within your pack.