Expandable design with a zipper for additional storage. Features universal mounting with quick-release buckles, reinforced top and bottom, multiple interior pockets, an external shock cord, and a waterproof removable rain cover. Volume expands from 15 L to 20 L. Dimensions: 12" L x 13" W x 7" H (10" H expanded).

• Expandable zipper provides additional storage (3"), adjusting the max volume from 15L to 20L
• Universal mounting
• Interior organizational pockets
• Waterproof removable rain cover
• Quick release buckles
• External shock cord for additional storage
• Reinforced top and bottom