Say hello to the SUPPup—a faithful companion with soft padding to hug your board, self adjusting slider for varying board widths, and straps that stow away for travel. - Fully assembled out of the box - Fits Yakima round, square, factory and aerodynamic crossbars - Integrated strap management stows strap ends for travel - Soft padding cradles your board - Slider adjusts to boards up to 36" wide - Includes everything needed to carry up to 2 SUP boards - Minimum crossbar spread of 24” or more