I don't see any real benefit in what you're making and how you're trying to market it. I don't see any benefit to this over a traditional beach towel, even after reading your sites. If there is a pretty girl at the beach she's not any prettier because of the towel. As I looked at the picture on your kickstart site I don't notice the towel at all, and the same would hold true if she were sitting on a traditional beach towel. If you do actually get funded, I don't think you'll sell very many through your website-you need to market where the beachgoers already shop and I don't see anywhere that you have that business in place and ready to go once the towels are manufactured. If I were to invest I'd want to see that there is significant interest in and a developed plan in place to market the product, not just a few vague comments about "worldwide branding". I'd want to see where the concept has already been presented to retailers, and I'd want to know their reactions. Saying you'll do this is one thing, actually doing it is an entirely different animal.
Your website and kickstart site don't mention the price of the beach towels, but I can buy two on Amazon that look very similar to your cabana stripe towel, and I can buy them both for $24. That means you'll need to compete with similar items (albeit a slightly different shape) that have a retail price point of $12. Can you? So far I'm not sold on the idea of the shape being anything special and I'm certainly not willing to pay a premium for it. That means your wholesale price to retailers will need to be in the sub-$10 range.
I think you'd be better off to partner with a couple of businesses that specialize in and retail women's beach accessories. If there really is a potential demand for the product, they'll recognize it and be willing to invest for a chance to be the first to market the product, especially emblazoned with their logo.
As someone who has invested in businesses, I don't see the potential return on just towels alone. As part of a product lineup, possibly. But as a single product by itself I can probably make more by putting my money in a good mutual fund. In other words, your site hasn't sold me on anything except the possibility of getting a bumper sticker for $25 or a towel for $85, neither of which interests me as an investor.