Since a great deal of attention has been given to the weight of the luggage carrier itself, Gabbiano's Barcelona collection is made of 1680D nylon with full satin lining. This has allowed us to not to only make it super light weight but strong as well. 360 degrees rotating wheels have been integrated into the design to ensure fluid movement throughout. In case of slight increase than the expected luggage requirement this bag also features the facility of expansion to allow more packing space. Three different sizes provide versatility, ideal for either weekend getaways or long trips with families.