* zipper flaps to help keep water out * 2 external stretch mesh side pockets perfect for kids size water bottles * 1 large stret
936142
I bought 2. 1 for my 5 year old and 1 for my 4 year old. Fully cinched it fit my 5 year old perfectly, but with my 4 year old the pack is just a little big and ends up on the butt.

Quality multipurpose pack with multiple features:
  * zipper flaps to help keep water out
  * 2 external stretch mesh side pockets perfect for kids size water bottles
  * 1 large stretch mesh pocket with clip for holding larger items, rain jacket, etc
  * adjustable waist strap for load distribution and stability
  * adjustable shoulder straps with small strip of reflective material
  * adjustable chest strap
  * rigid mesh back for breathability

The pack is light weight but we'll constructed.  Seems durable given double stitching on the zippers. Solid stitching all around. 2 zippered compartments. 1 small one perfect for a bag of snacks or any small collection of items. The main compartment,  on the inside, has a mesh pocket and pencil holder configuration for typical school supplies. The backing tappers in around the waist straps for a snug comfortable fit.

There is no headphone hole or bladder hole or pocket from the main compartment.
2651916
We got galaxy pattern. My daughter likes the design. Sometimes, the zipper get caught with the overlap/fly. Be cautious before pulling the zipper. The side pocket is a bit tight for water bottle, narrow bottle may be OK. It would be great if one of the side pockets is stretchy, could be net kind with the elastic opening.
117275
Perfect!  Large enough to fit towel and swimsuit as well as extra room.  I use it for my children's swim lessons and don't have to worry about water leaking out in the car.  This is not made to protect anything that could be submerged in water although I feel a short drop in water would no get in if you fold top over and buckle.
2524681
<a data-hook="product-link-linked" class="a-link-normal" href="/Outdoor-Fanny-Pack-Hiking-Camping-Biking-Waterproof-Waist-Pack-2-Water-Bottle-Holder-Sports-Bag-for-Women-and-Men-Green/dp/B01GMTZP70/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Outdoor Fanny Pack Hiking Camping Biking Waterproof Waist Pack 2 Water Bottle Holder Sports Bag for Women and Men Green</a>&nbsp;I just got this today and discovered that it has room in the main compartment for THREE 16.9 oz.full-sized water bottles while leaving enough "give" to put a phone in EACH of the two interior zippered compartments! Also this allows for two more full sized bottles on the outside with two more pockets for other stuff. There is also a sleeve on the inside back for gloves/hat or whatever. This would be kind of heavy with 5 water bottles so the back support strap would definitely help with the weight. I LOVE IT! Great design.
2789019
This is a lightweight carrier that has flexibility to adjust to a variety of water bottle sizes.  It has some level of insulation to keep water cool.  Straps allow for attachments to a variety pack or belts .  The material and seams are well made.  There is some concern that bottles that swet might hold some water in the case.  I recieved a discount price to review his product
3822839
Good size for 1, not too large. 1 beach towel, sunscreen, book, phone, snacks, etc. but will also fit 2 beach towels although not a lot more than that. I like that its a bit more square (wider) so things don't get lost within a deep black hole. White interior, 3 pockets - 2 open outside 1 zip inside. Inside pocket should fit most phones. Large outside pockets fits water bottle, sunscreen.  Material is a type of plastic so sand won't stick. Rope handles are long enough to fit over shoulder just wish rope wasn't so thick but not a deal breaker. Colors are Great!
3618153
Great bag. Good quality. There are multiple zippered pockets and the largest area will fit a 16.9oz water bottle. I use this for traveling and when I am out and need to keep my hands free.
3194812
great size. the medium is perfect for an entre, ice pack and a couple snacks. the outside pockets are great for extra water bottles.
1416196
Wonderful backpack that has the pockets on the sides to hold the water bottles with excellent storage inside. My daughter loves this color too! Would sure purchase again - - - this brand/product!
4276788
Handy bottles to send with the kids to school. I usually put ice in them with the water so it stays cold. They have cute prints on them and fit well in the pockets on the sides of their bags.
4354881
Awesome for getting my kids to carry around their own water bottles.  They love that it has a little snack pocket too.
358304
Very well made and well thought out backpack. The side pockets perfectly accommodate my 32 oz water bottle which is approximately 3.5 inches in diameter and 9 5/8 inches high with the lid.
2143654
Great little bag for $$ amount & quality.  Very roomy for smaller bag, ordered for daypack at disneyland was able to pack several bottles of water & snacks along with small items for toddler.  I was very pleased with this bag for my needs.
1625126
Love it. Used it for a trip. Enough space for basic needs, pockets on the side are great, they can fit like two reg water bottles in each one.
893561
Full size backpack with two mesh side pouches. It has a small front pocket and then a large back pocket and is a full size back pack
4511069
I purchased large one. Main compartment holds 2 24oz bottle. Plenty room and pockets for towel phone wallet and more. Only reason I gave three stars is the zipper. Quality of zipper that I'm not crazy about. But not bothering enough to think get the small one since this was too big for my purpose. Would I recommend ? Yes I would. Overall Quality isn't bad and for this price. Yes I recommend this product.
475420
I really like this bag. It's very spacious and I love it that it has 2 side pockets for a water/drink bottle. Also, the zipper pocket is also great; my only slight is that its not waterproof.