Hello Milton.
I own your iPhone 5 shade, and use it every time I get a chance, however I'm moving up to a tablet now. Unfortunately you have no shade for it (new 7" Galaxy Tab 4). I realize it's impossible for you to keep up with all the various devices, especially if you're actually buying them to test fit (which is just nuts). IF you're interested in the exact dimensions of this tablet, please let me know. If not, I understand.
Regardless, I would like to offer a suggestion for future designs based on my experience with the iPhone shade. Please do not take any of this as being critical for the sake of it, as my only interest is in throwing out suggestions that may make the products better.
1) They're heavy for what they do. Most competing products are either made of rubberized polymers, which are inherently lighter and less prone to cracking, or they are thinner, or they are made from woven materials like nylon. There's a reason for that, and that's that they are easier to carry and/or they can be folded for portability. Your products are built like a tank, but is that really the best philosophy for a sun shade on a controller that may already be getting heavy from third-party RF gear?
2) The shape is a box, whereas other products with similar purpose are corner-cut. Attached is a Photoshopped version of your iPad mini shade, which would shave I'm guessing 20-25% off the weight and likely not affect the performance in a significant way. It may also feel less "claustrophobic" and allow better access to the controls, especially when the size of the device gets up into iPad range.
Anyway, again, love what you're doing and just through I'd offer some end-user input.
Cheers!