Very good to keep sun away. Not too great for rain
934335
It was easy to put it on. We have a mule 4010, and it fits great. It is great to keep the sun away, specially in those leather seats. However it is not very useful for rain. Only if it is raining straight, lightly, and you are barely moving. Overall a good top, for a decent price.
476997
I've taken this hat canoeing in Missouri and out in the yard in Texas.  This is a great hat for rainy conditions and does keep the sun off (five stars for that).  However, it is not a general sun hat - if you want that, look for something with venting or cooler/thinner material.  I'd give it a 5 if they could figure a way to make it cooler with the same rain and sun protection.
942731
Bought this for some rain protection in a warm climate. It definitely was thin enough so I wasn't boiling, but it wasn't quite as rain proof as I would have hoped. Kept most of it off though.
712049
Sags some in the morning from dew, I take it down when it is supposed to rain. Does work well to shade
2621736
Definitely keeps the sun out but it makes it really hard to see. I would not use this item in heavy traffic.
1147331
It is well made and very easy to install. I did expect it to be a little heavier for blocking sun, but it does serve the purpose that I bought it for.
1323856
Great for keeping the sun from fading my paint and plastic.  Very lightweight.  Slightly smaller than I expected, as the cover is about six inches off the ground on both wheels of my '07 Bandit.
1129559
I love the protection this umbrella provides from the sun. However, The size of this umbrella isn't really useful for two people at once as the website boasts. I got the largest one available and it still isn't quite what I consider large enough for even one person to be covered adequately. The sun shines on my calves if the sun is not directly overhead although I am an average height. I wish there was an extra large so I wouldn't have to worry as much but this umbrella does a great job with my face and shoulders. I'll just have to combine sunblock with my sunblocker umbrella.
981109
it is better as a sunshield the cloth is nice but in true rain it seeps we love it at the beach for California Canines need to be shield from the rays
4099365
Very lightweight and works well against light rain.  If you want to stay dry in a downpour, this is not a good option, but it will hold out a moderate rain without weighing you down on your run.

The zipper is lightweight, but seems fairly high quality.  The wrists have a light elasticity and the (microfiber?) cuffs are comfortable.  The pit vents work pretty well, but if it's hot out, this will still hold in some humidity (be aware).  The color is very slightly lighter than pictured - typical hi-visibility yellow.
1755367
Wish it was a tad bigger for more coverage, but it does keep the sun off your head. We attached it to the back of an outdoor bench.
591889
I really like these overall, however they don't block the sun when it is bright out. Which is my ONLY complaint. They need to be darker/shaded more to block the sun. They are a bit cheap feeling when you are opening them/closing, however when they are on, they feel just fine.
3126129
Does a great job at keeping out the Florida sun and heat on my 2013 Honda Accord EX-L (coupe). Only drawback is that it's a bit bulky and doesn't cover the entire window perfectly. There's about an 1.5" gap not covered on one of the sides when you have flush against the other. Overall, it's great to have over the flimsy ones you can buy.
2766263
Fit is good but it can be a little boxy. Other than that, keeps the rain out and is not too thin.
4510162
Little bit big and a little bit floppy. Keeps the sun off. Hold weird shapes for a while when crushed.
4407043
Great for the times you are stuck in a light rain but just need a light cover up.
2273061
This item I rated OK, that is, it does protect you from the sun, but it doesn't give you full coverage no matter which way you position it. There is always a part of you in the sun. Also, there are no air flow vents at the top so, if there is the slightest of wind, the canopy bends and you have to hold onto the canopy. You then have to hold onto the arm of the umbrella because it moves when the canopy moves.  If you want a relaxing time wherever you may be or if you don't want part of your body sunburned, then this isn't the umbrella for you.