Warmbac Gournier 10 litre
A medium sized personal bag, capacity c. 10l. A good sized rigging bag, SRT kit bag, or small personal safety sack for deeper continental caves such as the Gouffre Berger. The Daren drum in the image gives an idea of scale.
The Gournier is oval section with low profile shoulder straps. It makes it possible to hang it from the belt, or else wear it on the back in larger caves, or if abseiling with multiple tackle bags - big enough to count, but streamlined enough to be un-noticeable.
Made of heavy fabric and with a double base (tape protected seam), the Gournier presents a decent handle when approached from any direction. Complete with adjustable twin shoulder straps (metal buckles) and drain holes.