Unrestricted movement with high capacity. Umpqua's SWIFTLINK(TM) Steamboat Sling Pack is ideal for those who enjoy having high-capacity storage but free line-of-sight and range-of-motion up front. Perfect for spey and switch anglers. A main compartment that holds six large boxes and secondary for smaller boxes and organization. Includes a LINK(TM) HatchPad. Features: Ten LINK(TM) ports (square die-cuts) designed for seamless use with all LINK(TM) accessories Capacity to hold up to 12 Umpqua(TM) fly boxes 11.5 liters / 700 cubic inches of storage volume Full pass-through net slot integrated into the back panel Single zip stretch mesh pocket on the exterior Secondary pocket with full-length internal zipped pocket and four internal mesh pockets