I was very hesitant because I didn’t know how how big the pocket was going to be. The pockets are very spacious and it easily fits my phone (iPhone 12 pro max). It holds my 40 oz hydro flask very well. I like how it comes with 2 different straps so you could carry it 2 different ways. Overall, I love this product!We have had Wild Wolf carriers for almost 20 years. The cords were fraying so I decided to replace them. I saw this carrier and was surprised to see how much space the front pocket had. This is the one area the Wild Wolf carrier lacked. We were getting ready to go to the state of Washington for our annual trip so I bought the black and pink one for my husband and I. First, it fit our 36 oz YETI Rambler Bottles perfectly. It has metal hardware which is a must. We used these on several hikes out there, one which was pretty long. In the pocket we had our cell phones, 4 granola or protein bars, keys, money and a mini kleenex and toilet paper pack. THIS WAS THE SELLING POINT. You can get so much in the front pocket. It was perfect. My suggestion for updates in the future would be waterproof zippers and different colors. I'm not big on pink and if you are using it for hiking it will get dirty quickly. While we were on vacation I saw they did add additional colors and I immediately purchased the navy blue flower carrier. This is darker and less likely to show dirt from any day hikes. Very happy with the carriers!If you like to bring your Yetti or Bubba cup along this is an amazing little carrier...fits my phone , money, and my cup and is comfortable to carry! It is a must have.The perfect amount of bag + a comfortable, functional bottle carrier. Fits my Yeti rambler 36oz and would easily fit bottle of similar size, in either direction.Big pouch fits my Note 10+ with enough room to keep a mini flashlight, keys. Sturdy zippers. There is a key hook in the big pouch.Was absolutely the right fit for hands free water carrier, more functional than a hydro backpack imo.Used the larger carry strap but the smaller one was a great as a handle, ended up using it to lash my sandals onto my gear -- small strap could easily double as a tie onto a larger pack situation for the bottle, too.Used on a 6 day trip. Worked great. I wish the front pocket was bigger to put more stuff =}I purchased this so when I'm out for the day I have something to hold my 32oz Hydro Flask along with misc items so I can be hands and purse free. I haven't used it yet but it does hold and fit everything I need it to perfectly. This includes Hydro Flask, DL-CC & cash, lip balm and keys with room for more.I love this bag. I use it every time I walk or go to exercise. It holds my water bottle. The strap is comfortable. The middle zipper compartment holds my phone and keys, the small one holds my driver’s license , cash , credit cards, lipstick. It’s very roomy. I travel with it. I’m traveling now and get asked where I got it. I tell everyone Amazon so expect some more orders.I bought this because I didn't want to carry a bag and my flask when I go walking. The front pockets are very spacious and the carrier itself feels pretty thick. I love that it comes with a carabiner, a shoulder strap, and also a hand strap (is that what they're called?) I have a 40 oz Takeya (similar to a Hydroflask or a 50/50) that fits in it comfortably but you have to make sure you secure it well or else if you grab your bottle and not the carrier, your bottle will fall out.I wanted a bag to hold my doggy water bottle, treat bag and poo bags on walks and this is perfect. I used a 'normal' bag for a couple of weeks but found the strap dug into my neck but this doesn't as it has the padded shoulder section on the strap. This is really heplful and can be moved to where you need it to be, with the strap moving inside it when the bag moves, instead of keep having to reposition it. It took a few walks to get the strap length right for me, as it hurts my back if it's too long, but now I have nothing bad to say about itUsed for dog walkingI needed a casual compact carrier that would fit glasses, wallet, keys and misc items. The large bottle compartment is ideal for small items like an umbrella, gloves as well as a water bottle. The mid pocket fits an iPhone and wallet. The small pocket is for keys. It’s single zippers, light duty only but perfect for my casual needs. It comes with two extra hooks to attach to carrier.I love this for carrying my water bottle, phone, Kleenex on a walk. The only reason I didn't give it 5 stars is because the shoulder pad slips and I constantly have to adjust it. If they made it so it stayed in place where you want it, it would be perfect.