The perfect bag for a wilderness adventure or an all day ride around town. The Serfas Ark Expandable Half-Frame Bag can adapt to accommodate more gear with its expandable bottom and will resist the elements with its durable water resistant construction. Thirsty? Pack your favorite water bladder (not included) and route the hose through the integrated Hydration Port.

• Expandable Storage (3L to 5L Expanded)
• Water Resistant Materials
• Hydration Port For Water Bladder Compatibility (Bladder & Hose Not Included)
• 5 Adjustable Hook & Loop Frame Mounting Straps
• Multiple Bag Exterior Attachment Points
• Size: 5.5″ Height (9″ Expanded) x 17″ Length x 2″ Width
• Capacity: 187 Cubic Inch Bag Volume (3L) / Expanded: 306 Cubic Inches (5L)
• Color: Black