DESCRIPTION Shaped to fit seamlessly with your pack, the medium Ultralight Pack Liner is designed to protect the gear you carry inside your pack from the weather outside, giving you extra peace of mind in wet and rainy conditions. Medium: Perfect for 50-70 liter packs. Large: Perfect for 70-100 liter packs. Features Roll-top waterproof closure Waterproof-coated fabric and seams Rectangular shape for efficient packing KEY ATTRIBUTES BUILD YOUR OWN PACKING SYSTEM Part of a coordinated system for optimized packing. Customize your experience by adding on smart packing and organization accessories that meet your exact needs. OSPREY ACCESSORIES INNOVATION All of our accessories have been overhauled to offer better organization, operation, comfort and reduced environmental impact. SUSTAINABLE DESIGN + bluesign® approved main body fabrics+ GRS-certified 100% recycled main body fabrics+ All DWR treatments made without PFAS SPECS Medium VOLUME 3539 IN 3 / 58 L DIMENSIONS 31H X 37W X 61D CM WEIGHT 0.116KG Large VOLUME 4638 IN 3 / 76 L DIMENSIONS 34H X 39W X 72D CM WEIGHT 0.152KG FABRIC MAIN bluesign® approved 100% recycled 40D high-tenacity nylon WARNING: This product can expose you to chemicals including dimethylformamide, which is known to the State of California to cause cancer. For more information, go to oehha.ca.gov/proposition-65/about-proposition-65 FABRIC MAIN bluesign® approved 100% recycled 40D high-tenacity nylon WARNING: This product can expose you to chemicals including dimethylformamide, which is known to the State of California to cause cancer. For more information, go to oehha.ca.gov/proposition-65/about-proposition-65