Gregory Mountain Products Cache 28-Inch Adventure Travel Roller Duffle-72 Liter Wide retractable buttonless handle eliminates heel kick and provides stable platform for stacking duffles, breifcases or backpacks. Custom flatpack chassis means more usable space and protection for your clothing and gear. Oversized custom injection molded ball bearing wheels provide superior rolling and maneuverability Removable, quickly deployable padded strap for an easy shoulder carry. Detachable Keeper for attaching breifcase or additional luggage