Osprey Ultralight Protective Backpack Liner – Large, Black, Waterproof for 70–100L Packs

Overview

The Osprey Ultralight Pack Liner is a purpose-built interior shield for your backpack. Sized for large bags, it slips inside to guard your gear from rain, splashes, and damp days. The large profile is designed for 70–100 liter packs, making it a practical companion for extended trips and flexible travel setups.

Designed for seamless fit and protection

Shaped to complement your pack, the liner nests neatly against the sides and bottom to minimize shifting and maximize interior usability. The roll-top waterproof closure seals quickly and securely, helping you manage moisture and sudden downpours without bulky rain covers.

• Roll-top waterproof closure for quick, secure sealing against rain and splashes.
• Coordinated system with compatible packing and organization accessories to tailor your setup.
• Bluesign approved main fabrics and GRS-certified 100% recycled main body fabrics for responsible material choices.
• PFAS-free DWR treatments to balance water resistance with environmental considerations.

System integration and organization

As part of a coordinated packing system, this liner works with smart packing and organization accessories to optimize your space and accessibility. The goal is to simplify how you pack, access contents, and stay comfortable on the move, whether you’re on a rugged trail or navigating a city transit hub.

Sustainability and materials

Durability meets responsibility. The liner uses bluesign approved main body fabrics along with GRS-certified 100% recycled main body fabrics. All DWR treatments are PFAS-free, aligning with eco-conscious design choices without compromising performance in wet conditions.

Practical use cases

Imagine weather-facing adventures where keeping gear dry matters: camera equipment, electronics, extra clothing, or compact shelter. The Ultralight Pack Liner offers a low-weight solution that preserves packing space and supports quick reorganization on the go. Its flexible capacity adapts to content size, while the waterproof seal helps maintain dryness in varied climates.

• Ideal for protection inside large packs (70–100 liters) used for hiking, travel, or daily commutes in wet weather.
• Easy to adapt with compatible organization accessories for a customized packing experience.

Key benefits at a glance

Protective interior layer, ergonomic fit with your pack, eco-friendly materials, and a practical roll-top closure come together to support reliable, dry transport of your belongings during dynamic trips. While results vary by conditions, the liner offers a flexible option to manage moisture and organize gear inside a large backpack.