Shoreline 12.1" Neoprene Laptop Jacket Neoprene Dimensions: 11 inches x 9 inches x 1.3 inches Maximum Laptop Size: 9 inches x 11 inches x 1.3 inches The zipper on three sides allow the sleeve to open and close with your laptop The neoprene walls stretch to accommodate an extra drive or power supply when necessary in the mesh pocket behind the screen The Stay Connected System allows other Shoreline cases (Sold Separately) to link up to the outside of the case