SHARKMOUTH FLYHIKER Hiking Hydration Backpack Pack with 2.5L BPA Free Water Bladder, Lightweight and Comfortable for Short Day Hikes, Day Trips and Trails

I REALLY wanted to love this product, but it fell short in several important areas. THE GOOD: The pack is nice and feels like it could take a beating, and the zippers are good quality. The pockets are big enough to hold a pocket first-aid kit, snacks and a few more miscellaneous items, making it perfect for day hikes & day trips. The insulated pocket keeps your back from warming up the hydration bladder, and the insulated hose is nice. On top of that, its a nice looking little bag. I got the Jungle Green bag, which is actually dark grey, but I selected the color by picture rather than by description. I love the stormy-grey color with the black. The bladder was easy to fill, insert into the pack and clean. There was no noticeable taste on first use, although I did give it a good clean before using it for the first time. The hook on the strap means the hose is well secured and wont bounce loose while hiking or climbing. Ive read reviews about a sloshing problem with the bladder, but thats an easy fix. Once its filled, turn it upside-down so the air is by the hose output, suck the air out of the valve until you get water, and THEN place it in your pack. With no air to mix with the water, theres no sloshing sound (this should be standard practice with all hydration bladders.) THE BAD: *edit* Originally I posted a review about there being no height adjustment for the chest straps, which was a huge problem given my frame. As it turns out, what I thought were fixed connection points for the chest straps WERE actually adjustable. Mine were just horribly jammed and it took someone with stronger fingers and more patience than me to adjust the height of the chest strap. Once that was solved, the pack fit much better, and the chest strap was in a more comfortable/usable position. Although very aggravating to adjust, the chest strap height is no longer a problem, and the pack fits well! The waist strap is still fixed, but theres only so much you can expect at this price-point *end edit* I tested the bladder before my first hike and was pleased that there were no leaks. The problems didnt come until I was on the trail. The bite valve has a horrendous leak. When capped and pushed in, everything is fine. But once you pull out the valve, it leaks terribly, and I felt like I was drooling with every sip. I checked to make sure it was firmly inserted to the hose, and it was, and the water output itself was sealed unless I bit or squeezed it. The leak came from between the valve and the hyperboloid-shaped bit of plastic in front of the attachment point, and theres no way to fix that. Its just going to keep leaking, making drinking awkward as hell until I find a new bite valve. Update: I did end up getting a new bite-valve, and now that my fit issues and the bite valve problems are solved, this is a really solid pack. Ive used it on multiple day-hikes, a few road trips, an outdoor concert, a couple of day trips and once when I had the flu and didnt want to get out of bed to keep hydrated. Its still intact, functions great and can take a beating. Ive updated to four stars, but only because I had to replace the bite-valve immediately after buying it. Had it come with a functioning bite valve, this would have easily been a 5 star review.

I had high hopes for this pack. I also spent a few days on the fence and decided to go with the Sharkmouth brand. Then debated between two different styles and chose this one. Regret it. Cleaned out the water bladder and tested it to be sure the water pulled through okay and there were no issues. Everything seemed fine but looking back, I should have put more water in the bladder and filled it completely. First use and it seemed as though the bladder had a leak where the tube connects. Stopped partial way through the hike to fix it. As I held it up to slide it back into the backpack, I could still see water dripping. Decided to just keep going but my entire backside ended up getting soaked. Turns out there is a smalllllll tiny itty bitty hole on the front of the bladder. There goes that. Going to get a replacement but NOT from Sharkmouth. =[

I received my hydration backpack yesterday and of course I had to do a mini test on it. After filling the bladder with water and securing it in the backpack pouch I would have to say that this is a very well built hydration backpack that hopefully will last me quite a bit of time. As for the mouthpiece, it is a little frustrating... when you pull the top open and try to get the water, air leaks in around the piece that moves in and out which makes it almost impossible to get a decent amount of water. I did find a trick though... if you pull the mouthpiece out then move it slightly back in you can sometimes get decent flow without air coming into the system. Id say the design team is 90% to a great quality product but just needs to find a way to seal the air gap.

Love it

This backpack worked great. The 2.5L is a nice size and there is also nice extra room for other things still.

Overall I’m happy with this hydration pack. Nice size and weight when filled with water. Has plenty of pockets. I carry a shock pump, a few tools, my phone, keys and wallet and it still has plenty room for more. The blue is lighter than the picture shows. Also the fitting between the hose and the bladder is plastic, not sure how durable that is in the long term.

I bought 2. Great material, Ive used them twice for hiking even got into a river, but used ziplocks to keep my belongings dry. Water bag perfect.

Absolutely loved all the space it has and the drinking bag with insulated pocket to keep water cold!

Rather than paying $ $60.00 or more for a brand name back pack I looked to Amazon for help. The Sharkmouth Hydration pack works great. Well constructed and with easy to use zippers. The pack meets all of my needs while I am hiking or biking. I would purchase this item again !

These were awesome, plenty of room for other stuff in our bags even with full water bag