Trolley Medium is bigger than small, but smaller than big but you probably already guessed that. This bag has tons of pockets and compartments and sturdy feet for wherever it's sitting available in an awesome array of colors. Dimensions: 11.25W" x 4.75H" x 4" Weight: 0.9 lb Handle Drop: 2.5" Exterior Features: Tote handle One top zipper compartment Front and rear zipper compartment Two side zipper compartments Wipeable bottom with sturdy feet Body & Trim: 100% polyester, Lining: 100% PVC Interior Features: Mesh zipper pocket Back wall zipper pocket Wipeable interior Divided mesh cargo pocket Divided clearview accordion fold out compartment with wipeable interior