Nathan Women's VaporAiress Hydration Pack Running Vest with 2L Water Bladder - Lightweight Hydration Backpack for Marathon, Hiking, Cycling & Outdoor Activities - Perfect for Trail Running & Adventure Sports

Purchased for youngest daughter who joined cross country running team. She absolutely loves the fit and overall comfort. Uses it every other day trail running... Would recommend to buy if looking for lightweight vest with good fluid capacity.The Nathan Vaporairess is a decent hydration pack. I have been in search of a good pack for my longer runs and for my upcoming Spartan Races. However, the first time I used this hydration pack for a quick 6 mile run, my lower back was in pain! I have never had any issues with my lower back before. Even with other hydration packs, weighted vests etc but after I took off the pack my lower back was killing me for hours. I tried it again for a 5 mile run once my back was better, just to see if it would happen again, and my lower back hurt again.I am a 34B, 29 years old in very good health and in very good athletic shape. I ordered the small/medium however it feels like it is just slightly too small due to my muscle around my shoulders. If I had no muscle, then it would fit probably perfectly. I am athletically built and have broader shoulders.Pros - I like the straps in the front across the chest and how easily adjustable they are. I like the magnetic piece for the water hose. That stayed in place the whole run and was very easy to use and put back after a quick drink. I liked the pockets on the side and in the back. My big phone was able to fit nicely in the front pocket that is meant for a water bottle. The bladder was nice and easy to fill.Cons - the water bounced around a lot and I kept having to readjust the pack and pull it back down in the front as it kept sliding up. I think this is why it hurt my lower back, having to readjust the pack. The pocket for the bladder is open, no button or zipper or anything to close the pocket which I thought was odd. I, personally, would like to make sure that I have some sort of pocket that closes for the bladder so it does not slide out if anything were to happen. I would like the pack to sit slightly lower. It seemed very high on my chest and my back which did squeeze my underarms slightly near my armpits. I like to wear tank tops while running but it chaffed slightly near my armpits while running so I had to wear a tshirt the second time and the chaffing did not happen. This may have happened because it felt as though it was slightly too small.Overall, I could see this being a decent hydration pack for a walk but for running and for endurance races, I do not believe this is the right pack, especially for a woman. Design and fit is almost there. Price seemed slightly high for this type of hydration pack.I love this vest!! Only 4 stars because the S/M and the L/XL are exactly the same size. I even measured top to bottom and side to side. It fits so no biggie. I love all the pockets and the water bladder stays secure. I’m keeping the L/XL I guess, I am small chested and it’s pretty snug. If you have any larger than a B cup chest, it will not fit!!!!Fully filled it weighs 4.4 lbs. My only one single complaint is that the main pouch hangs open. If there was just one button, clasp, strip of velcro...anything...then this would be absolutely the perfect hydration vest. If you are a small female runner, this is the greatest thing ever. I live in Florida, so I don't like to wear anything more than a sports bra on top for 11 months of the year, but I also go through a lot of water in a short amount of time. Oh, did I mention the pockets? I can carry gels and my brick of a cell phone in the front pockets with no problem. The pockets will also easily hold extra hydration flasks, but I've personally never found the need to do that...yet.So far I've worn this for a little over 230 miles worth of runs and it is holding up fine, even with the insane amount of DEET that gets sprayed all over it. It's also been washed and air dried a few dozen times. The Nathan logo has just started to wear off and the white straps have a permanent gray tinge to them, but to me that's just a sign it's getting worn in. I did get a little bit of chafing around the neck area and at the lower chest strap, but for not wearing a shirt, I thought it was pretty minimal.See those little loops at the bottom? Just go ahead and cut those off now, because otherwise they will drive you batsh*t crazy by your first mile. Better cut the ones off at the top too. They're supposed to be for walking poles, but let's be real here -- if you're reading reviews about this vest, you probably aren't hiking the Appalachian Trail.I've been using this all summer and I really do love it. I have a few qualms though...namely the water tube flops around when you run. I could not figure out how to keep it stabilized other than the little "drawstrings" for the chest pockets. But any time I take a sip I pull the tube to my mouth then have to kind of push it back and re-tighten the strings. I also feel the loops in the back flopping around. Typically in the summer I run in a racerback tank...not recommended. The back meshing is rough and rubs. I always end up with little rug burn looking marks on my traps. Running in a tee shirt prevents this but is less preferable for me. Also the yellow chest straps are pulled all the way to the tightest setting and there is still SO much strap left over, not sure why this is. One of them is still neatly wrapped the way it came, but my little son unwrapped one so it's all jumbled up. I am a size 4, average size woman and I have the small pack. Amazon did not offer the XS size when I bought mine.Overall I really do love it. I won't race with it, only train, but I think I'll miss having all the storage on race day.Nice trail running pack, kinda. Needs improvements. I could be picky, but for its price I guess I expected better. The sizes run small. I’m 120lbs, 5’3, cup size C, and usually order small-medium on my packs/gear. This one I would size up a whole to Medium-Large. Also, not thrilled with the open top pack, there’s no fold or Velcro over your hydration bladder, just a little Velcro strap to secure to it. And the chest straps are excessively long, sucks to have to cut or tuck that in somewhere (no thought here by their designer). The top of the packet comes up too high on the back/neck line, I found it a little uncomfortable. Overall weight is great, nice and light, decent pockets, really like the sides with the zippers. But overall, this pack is a No-Go for me. For its price, I was quite disappointed.A fantastic hydration pack! I am so so happy with this purchase. So nice to have a pack especially designed for women! The pack is super lightweight and hugs your body as it should. There is no movement even with a full bladder and the storage is just perfect. All the essentials easily accessible in the upfront and side pockets and plenty of space in the back compartment for a lightweight waterproof, midlayer top, a small first aid kit and probably more. One thing I noticed was it rubbed my back a little at the bottom edge of the pack when I ran last weekend with the full 2L bladder, but I imagine this has less to do with the pack itself than individual body shapes. I've read other reviews where buyers have complained about neck rubbing, but this hasn't bothered me at all. I plan on using it for a 4 day 77km race next month and I know it will be the envy of the other competitors! I can safely say you won't regret buying one of these! Oh and the turquoise colour is way better than expected! : )Really happy with vest. Holds a lot. Hasn’t rubbed so far. I’ve ran with it on 5-10 mile fell runs and also a 30 mile run, with no issues yet. It didn’t come with bottles for the front but decathlon sell soft bottles that fit. The water bladder is much better/easier to dry than other ones I’ve had. Would really recommend. Does come up quite small, I’m a size 6-8 women’s and have the XS but it is quite tight when the bags full, so definitely try it on with a full bag because it pulls it in.After years of being reluctant to use a vest for the long runs I decided to try one. After some research I decided on this one and I’m so happy I did. I’ve had no problems with it so far (2 30/32km runs) and I’ll definitely be using it for the marathons I’ve got lined up this year. I’m a dress size 8/10 and went for the size S but I do have to have all the straps at their tightest. I probably could of had the xs but I’m happy with this one.Snug fit and doesn’t bounce. This is my second vapor airess. I wore the first one out!I'm 155lbs, 5"7, larger sized chest. The S/M fit well, although if my boobs were any bigger I'd have to go up a size. The bladder is a top loader with a removable tube, also reversible which makes it a cinch to clean. The vest didn't bounce around at all, it was very comfortable. Fit lots of gear onto me and it was really nice to have an easy-clean pouch to put my empty gels into. This is hands down one of my favourite running packs. I've used running belts, handheld bottles, and Camelbaks, and I'd choose this one over any other.