Also a special type i saw are pvc umbrellas with black (not transparent) canopy. Also high-glossy but not transparent. Also i saw umbrellas with golden canopy and silver canopy. Also looks interesting

I personally prefer clear pvc canopy. the higher the high-gloss the better


When searching for clear umbrellas on the web i even found one named "brelli". The canopy is a compostable bio-plastic. not as transparent and beautiful as the normal clear umbrellas, rather milky. The construcion is like the traditional asian umbrellas. With 60$ very expensive. a product for people who want everything "bio". Another curious umbrella i found on japan. round the umbrella there was a clear pvc curtain that goes nearly to the bottom. So the japanese people are not only protected from rain that falls down, even from rain the wind blows from the side.
Another curious thing: illuminated clear umrbellas: chinese online stores are selling different types. A DIY -project is the florabrella: 8 rgb led stripes are mounted on a clear dome umbrella allowing different color changing and sparkling animations with a micro controller.