The Nash Scope OPS Rucksack Expansion Pack increases storage capacity for changing tackle requirements without needing to switch luggage. It connects to the male and female heavy duty clips on the tops and bases of Scope OPS Rucksacks, allowing you to add or remove packs to hold extra bait, cookware, spod kit, or additional clothing depending on your target venue and session length. - Zip open expansion design to alter capacity - EVA hard base keeps an Expansion Pack protected and dry when used at the base of a rucksack - Unique wrap around webbing that Velcros around the perimeter of the pack detaches to create a shoulder strap or loosens to become a carry handle - Twin additional compression webbings double as carry handles or can be used to secure additional items like clothing or roll up unhooking mats - Expansion Pack and Foil Lined Expansion Pack for food and bait available