Yes, Gen1 is only available in black. I made these out my own pocket so having different colors and producing them would of cost me too much. Now we are trying to expand and make more of these so we are going to produce Black, OD green and Desert Tan.
The additional cross strap is on the back of the bag. The Gen1 has 1 horizontal main strap that goes across the top to distribute the load for the "X" straps. At the bottom its stitched into the bag floor.
On the Gen2, we did a second horizontal strap for added strength. Not because we had problems, but i wanted to improve the bag anywhere and everywhere i could. It probably wasn't needed, but i like to overkill stuff if i can.
Here's a photo of the new Gen2..
Also, we are going to do Molle Straps and adding drawstrings to the mesh pockets.