* Expands from 9.5 to 11.5 cubic feet. * Constructed from premium quality rainproof material with sonically sealed seams. * Six straps for added attachment security. * Two interior pockets allow organization of smaller objects. * Zip closure allows the bag to expand just like your expandable luggage. * Fits cargo carriers up to 60" x 24". * 48" x 19" x 18" expands to 48" x 19" x 22".