I bought two of these for my kids when they were on sale for $5 each. Awesome buy at that price. Holds ten discs plus a putter in the putter pouch. The top has a zipper to close or velcro to roll up and keep it out of the way. The bottle holder isn't large, but will hold an average water bottle or the tall skinny Gatorade bottles. 

The only real drawback is that the kids say the straps hurt their shoulders. This was easily remedied with about 10 inches of foam pipe insulation on them. 

On the whole, it is a very good buy for the price. 

The Galaxy starter bag fits right in with a lot of small, inexpensive bags, but I give it extra stars for being so darn affordable. I needed a quick bag for a friend who is just starting out and this one has all of the basic features for less than $15! The water bottle holder is a bit too small for the popular insulated thermos, but will hold a simple water or soda in a plastic bottle. Don't expect much with a bag in this price range, except that it gets the job done when you want to carry a handful of discs around the course.