YakAttack ShortStak Upgrade Kit for BlackPak Pro | 13" x 16" - Black | Stackable Kayak Crate Extension with GridLoc Panels & Hardware | Not a Standalone Box | Made in USA

Optimized to be a second layer of storage for quick access to essential items, and intended to increase the usable gear space both inside and outside, ShortStak Upgrade Kit is a stackable box that replaces the lid of a new or existing BlackPak Pro. Upgrade Kit is not a stand-alone box, but is intended for tandem use as a singular top mount with a size 13x16 BlackPak Pro as they utilize shared components and share compatible dimensions. BlackPak Pro and tackle boxes are not included. Shares the same GridLoc 2D mount platform as the BlackPak Pro where molded screw bosses enable inside and outside accessory attachment to panels. Accessories include GridLoc MightyMounts, MightyMount XL, Through Hull Wiring Kits, TracPaks, and more. ShortStak Upgrade Kit includes four side panels, one bottom panel, four rubber bumpers, one pair of hinges, one pair of catches, one pair of latches, one pair of straps, and all of the stainless steel hardware needed for assembly. Lid not included. Built for harsh marine condition use, made in the USA with a built for life guarantee. Lightweight design with injection-molded UV stabilized polymers. Weighs 3.6 lbs, measures 11.9” x 14.9” x 4.25” internally and 12.94” x 15.94” x 5.25” externally.