Here is a nice Soviet gas mask carrier for your consideration.  This late war carrier is made of the soft cotton material often referred to as “tea towel” fabric.  It has a classic Soviet wooden toggle adjustment on the shoulder strap, and has the waist tie as well.  This waist tie is often missing as Red Army soldiers would remove it for convenience.  This carrier has the wooden blocks in the bottom to support the filter, and best of all… it is 44 dated.  A fabulous carrier.