Got this mostly to get my phone out of my back pocket and potentially where I could see it through the transparent window. FWIW said window is also, in part, a green house so phone gets a little warm on prolonged direct sun. Bag is large enough for iphone 13 pro, but not for my predecessor Samsung AOS2 which oddly is 2cm longer than the iphone and slightly wider. The straps hold the bag with phone pretty well immobilized, but it does shift a little bit if bumped. Bag is wide enough that I occasionally touch it with my knee while riding, but this is ok. Main annoyance is when I stop and get off the saddle to put foot on ground the bag pokes my front as the saddle pokes my rear, not much space in there. Bike is a 54cm.Never the less I am keeping the bags as I think they are a better solution than carrying the phone in my back pocket, especially when it cools off and multiple layers will bury the pocket. Just measured and one bike has 8" from saddle nose to bag, the other only 7". Not the best but tolerable as I spend 99% of my time on the bikes riding and not standing around. FWIW the bags come with lime green elastic edge water proof covers which just fit over the tops of the bags presumably to keep contents dry in heavy rain. The bags seem well built and likely to hold up for years. One final comment, there is a double zipper and since the space is constricted running the zipper around the end towards the saddle while standing straddling the top tube is a little touchy. I weigh ~140#, so those more amply endowed and short will have to get off the bike.Further experience: getting used to the small distance between saddle nose and back of bag. Have also noticed that while riding, if I stand up to eg go faster up a hill, my knees will hit the bag every 2d or 3d pedal stroke, so makes standing while pedaling less comfortable. But again I rarely stand and can get used to not doing, compared with the advantage of having the cell phone more accessible.This looked pretty decent on arrival, but I had wondered how this type of phone holder/cargo bag would work.It seemed made nice enough for the price. I liked that it had a hard-ish shell and retained it's shape well. Storage inside was good enough, larger than my previous cargo pouch. The touchscreen function worked fine, you could easily swipe and tap things with no issues, though the plastic was a bit wavy, it could have been more stiff.The first issue I ran into was when I put my phone inside. Being that you have to flip the lid up to stick your phone in, the phone flips the screen upside down at this point (My phone was fully on with my GPS apps on and ready to go). When you close it up, it's not pitched down enough to flip back around. The few times i opened this up, I had to pick the front of my bike up in the air and bounce it for the phone screen to flip back around.The bag itself could be a tad longer. I had a hard time squeezing my phone's charger cable in without it pressing not-so-gently against the bottom of the case when I zipped it up. This could lead to wear and tear on the phone, cable and the bag. My phone fit fine, it's one of the larger models out there, it's just clearance for the charger port on the bottom combined with my stiffer charging cable was the issue. Smaller phones will be perfectly fine.I have a new enough flagship model smartphone with a perfectly bright screen that works fine on my handlebar phone mount that I have been using the past year with no issues. I was just wanting to try one of these bag style phone mounts as I was wanting more cargo space, and to move my phone off my handlebars to keep it safer.Today was a sunny day, around 10am springtime sun, no clouds.I have a regular men's style mountain bike, with a regular straight across top tube.The little "hood" over the top of the screen area is completely useless. I don't know why they bother. If its there to shield any light, it only creates a tiny useless shadow at the very top of the screen.Now for the actual usage. I had it all ready to go. I was already straddling my bike ready to leave. I needed to open the pouch to get my garage door opener out, but the bottom of the pouch was too close to my crotch while straddling my bike, so I had to shift out of the way to get it open. After putting my garage door opener away, and fuddling around with zipping it back up, my phone screen was upside down again, so I had to dismount my bike, lift the bike up to make it flip back around.Ok... off to the bike ride. I immediately couldn't see anything on the screen. It's way too many inches lower and further behind than my handlebar phone mount. You really have to look straight down, taking your eyes off the road to see your screen. Not good.On top of this, the plastic covering the screen seems to have some kind of polarization or something in it, as it interferes with my polarized sunglasses, making it even harder to see unless your turn your head 90*.I I started riding, I quickly realized I forgot to put my music on too, but looking down at the screen, I couldn't see it. I could barely make out some of the shapes of what was on there from my GPS app, and I thought I could easily navigate to turn the music on, but I couldn't. It was as if the phone's screen was on it's lowest brightness while in this thing. (it wasn't it was on full brightness)I had to stop my ride, lean at an awkward angle to see the screen enough to get the tunes going and switch back to my GPS app.The entire time I was riding, I couldn't see the screen, so I just gave up looking.I did like the bag's size and shape, and it looks cool vs some of the other bag and pouch options for this area of the bike. But what good is it if one of it's primary functions doesn't work very well.I was almost back to my home, having done a 7 mile ride in about 25ish minutes. As I was pulling into my neighborhood, my music went silent. I figured I was getting a spam call or something, but the music never returned. As I pulled into my my driveway and pulled my phone out of the case, it was super hot, and there was the "overheating" warning on the screen.When running GPS and other apps with the screen at max brightness, most phones can get warm. Being in this enclosed case with no ventilation, in warm weather, with the sun beating down on it... it was enough to cause it to overheat.I regretfully pulled my stuff out of the bag, removed it from the bike and filled out an Amazon return and wrote this review. I wanted to like this thing so much, but it wasn't going to work for my needs.I'm somewhat hardcore with my bike riding,especially when I am riding offroad trails. I'm not a pro by any means, but I like my gadgets and technology. I need to see where I am to navigate constantly . Having it on my handlebars is the perfect spot to view it, but not so perfect for keeping it safe from hitting trees and other stuff while riding on narrow singletrack trails.I was really hoping this bag would be the answer for more safety to my phone from falls, dust and mud, but unfortunately it wasn't.I bought this also because I am starting to gather up gear so I can start to do long bike packing trips and will need to cover my bike in cargo bags for the stuff I will be carrying.I have a cheap little schwinn pouch I got at the big box store that goes in the exact same spot I have been using for a couple years and will have to go back to using that for now. It holds my battery, cable, wallet, keys and a snack, but kind of bulges at the sides. This new pouch would have been great for all that stuff.I now have two of these things for our gravel bikes, and they mount easily and securely. Can't beat the price, good value.Two complaints: The zipper pulls are heavy and noisy flopping around. I clipped them off and replace with two little short cords, no longer noisy.The other complaint is that my phone overheats when stored in that top compartment facing up towards the sun. So I don't store my phone there on warm sunny days. In cooler weather or shady trails, I suppose I'll use that phone window.Good value for the price. Excellent customer service if you have a problem. Mine had a binding zipper and they sent a replacement without hesitation. My Samsung Galaxy S20 FE fits in the pocket perfectly. Seeing the phone's screen is a little difficult in bright sunlight - especially when wearing polarized glasses. The phone does get warm on warm sunny days.Product works as it should. Ordered 2 for 2 bikes. One came with the waterproof yellow cover. One did not. Not a big deal. But my only reasoning for 4 stars is that my phone overheated one sunny day. Not sure why, wasn't even that hot out either. But since then I have gotten a different phone holder for those days. I was just hoping to use just one all the time. Touch screen works decently though. I have not tested in rain thoughThe product is of excellent quality which makes it worth the price asked for.The velcro straps stay firm and don't loose grip keeping the case stable. Even the inner velcro flap that holds the phone is great. I forgot to zip up the case once and even after 2 hours of cycling the phone thankfully was held firm by the flap and didn't fall out.The zipper also is excellent. Cycled through 5 minutes of moderate downpour once and not a drop went inside keeping the phone absolutely dry.This small utility is so helpful during rides to store few small tools and utilities which are must to carry while riding. And it also holds the phone and touchscreen works perfect. Only one downside is the straps are not sturdy and strong. Velcro could have been stronger.Quality- decent/good, certainly not great considering the price.Front and bottom-front straps are not long enough (poor design)Zippers are good.I am able to fit my Samsung Galaxy Note 10 plus along with its case. This is good!This product is an nice little pocket to put your phone and other tiny stuff.Be sure to remove this bag before washing the bike otherwise this will not last long because the velcro are not heavy duty.The only thing I don’t like is the rear velcro, it is too short, cannot wrap around if you use this bag for MTB.This tank bag is perfect! I put a battery pack in mine to keep my phone charged while using navigation and playing music. I use the headphone jack hole to run the cord to my phone on my quad lock.