Israel designed strange special purpose ruck find at flea market

[Tonomachi]

I picked this up real cheap at the flea market and was wondering if anyone recognizes it as to what item(s) were carried in this backpack. It has two horizontal straps that Velcro into a circle and two vertical wraps.

 

Back

 

 

[Tonomachi]

Front & Label

 

 

[Tonomachi]

A sleeping bag seems to fit this configuration but I'm pretty sure something else was carried in this manner like maybe a several gallon can of water for the entire platoon? Any ideas?

 

 

 

 

[Skysoldier80]

Almost kind of looks like. Breaching backpack

[Boy Howdy]

Here's their website if you want to try and ask them,

 

http://t9-design.com/