the case is made from spandex/lycra fabric.
the case is made to fit most OpenAps Rigs.
it measures 2 1/2" x 2 1/2" just about square.
the case has no zippers or velcro-there is a 1" inch fold over secure closure on back.
it has a discreet web 1/2" wide black loop on the top of the case for the carabiner clip...the case can be worn with the carabiner clip and the 1/2" black lanyard strap (both included) around the neck or remove the lanyard and clip it on your belt loop.
the case has a double polished heavy duty 20 gauge pliable vinyl super clear view window.
the case can also be attached with carbiner to a belt loop, pocketbook, backpack, test kit.