This Bell Rucksack Bike Seat Storage Bag is perfect for your outdoor bike adventure with its dual compartment that expands to fit more gear.

Features:

• Rucksack 555 Seat Bag
  
• Vehicle Service Type: Bicycle
• Reflective Tail Light Loop
• 4" expandable compartment
• Easy Attachment Velcro Loops
• Mounting Type: ‎Seat Mount
  
• Strap Type: ‎Adjustable
• Light colored interior makes contents more visible
• Item Package Dimensions L x W x H: ‎11.8 x 4.1 x 4.1 inches