The Serfas© Ark Expandable Half-Frame Bag can adapt to accommodate more gear with an expandable bottom and resists the elements with a durable water resistant construction. Thirsty? Pack your favorite hydration bladder and utilize the integrated Hydration Port routing.Design Updated (2020) 5 additional frame attachment points have been added to the bag bottom for an even more optimal secure fit on various frame shapes and sizes.
- Expandable Storage (3L to 5L Expanded)
- Water Resistant Materials
- Hydration Port For Water Bladder (Bladder & Hose Not Included)
- 5 Adjustable Hook & Loop Frame Mounting Straps
- Multiple Bag Exterior Attachment Points
