New and improved design The Medi Kit Trekker features a rear wall and bottom that is stiffened for more rigidity. Rugged wheels accommodate any terrain. Rain fly with storage pocket and zippered back panel pocket for protection. Constructed of tough, water resistant material with rain fly and pocket. Easy access and storage with clear pocket zipper liners and zippered back panel pocket. Plastic feet allow kit to stand on end. The main compartment measures 22” x 12.5” x 10.5”; the outside dimensions of the bag are 23” x 13” x 13.25”.