Water repellant trunk bag with expandable storage that expands from 7L to 15LExpandable main compartment with striking red lining for easy item recognitionAvailable with Basil`s Universal UBS system, or pre-installed MIK mounting plate for use with MIK compatible racksReflective accents increase visibility and improve safety when cylcing after darkDual side pockets for quick access items and organizationRemovable should straps increases portability while using it off the bikeMIK14.2x10.6x7`427 c.i.BlackX-Large (301-500 c.i.)