The outer shell is constructed of nylon pack cloth with a clear pocket on the outside for an inventory sheet. The inside consists of high density pluck foam cut into 1/2″ squares that are 1″ deep. The squares can be removed so vials fit snugly with clear vinyl overlay to keep them securely in place. There is a #10YKK nylon zipper with lockable zipper slides. It is available in royal blue with a weight of 16 oz. and overall dimensions of 13″L x 5 1/4″W x 3″H.