Some of the photos were taken from sharky-fourbees.blogspot.com. In the photo you can see how a standard backpack is worn with the help of such a belt, the backpack is not for sale.
Original supporting straps (Y-strap) of the Czech Army made post-war (late 1940s or 1950s). The German model of the Y-belt is almost completely repeated, and it may be used in reenactment instead of German straps after a number of alterations.
The straps are made of natural leather, a diamond-shaped pattern is applied to the smooth side (to make the belts less shiny). Steel fittings, painted in green. Standard size (single).