The As196 eyeglass case is a hard eyeglass case. It has a very sturdy design, strong hinges, felt lining interior that wont scratch your lenses and a perfect size for pocket storage. As302 is even slimmer and comes in a different array of colors, looks very professional and masculine. S1 case is a round shaped case, very smooth yet very protective.
Inside measurements are as follows : S1 case : Inch : 2 1/4" W x 6" L x 1" H / Inside mm : 62 W x 150 L x 25 H
AS302 case : Inch: 2 1/4" x 6" x 1" - mm: 50 W x 150 L x 28 H
AS196 case : Inch: 2 3/16" W x 5 3/4" L x 3/4" H - Inside mm: 55 W x 145 L x 20 H
