Note that RB’s preview exaggerates color fade a bit. Having bought their shirts before, while there is some fade due to printing in a CYMK colorspace, it’s somewhere between what the preview and the source image show.
Just a reminder these are available! They’re on Pre-order til October 3rd, which will be when they start printing.
On Sharkrobot, shirts are on pre-order for 2-3 weeks to gauge their popularity and keep the store page filled with popular designs. If a shirt doesn’t get enough sales, after printing and shipping the preorders it will no longer be available in the store! So, if you were thinking of buying them, this may be your last chance!