Carapace Medium Spinner White. This is the protective shell you take with youâ??light, strong and naturally suited to travel at the speed of (urban) life. Patented curved aluminum alloy frame outlines the bright colors and unique shape of this city standout that also plays well in the wild. Formed from Advance PC with mirror finish, the Carapace Collection features the TSA flat-lock system â?? custom built for Lojel, to lock down this stunning redefinition of the frame suitcase.