I got it because of my participation in the Young Birder of the Year Contest. It is super comfortable and just my size, I'm very pleased.
... Which makes this the perfect time for me to mention that this year's YBY contest is starting soon! If you're a birder who is 10 - 18 years old, you really should participate! It is a lot of fun. You're going to be birding all summer anyways, true facts. Taking part in this contest will not only encourage you to go birding as often as possible, it will also make you a better birder! Depending on what modules you take part in, you can learn how to keep a field notebook, illustrate birds, write essays about your experiences, take photographs, or start a project to help your local birds.
At the end of the summer, you will turn in your work for it to be judged. Not only will the ABA's panel of judges give you a grade, they'll also give you helpful feedback so that you can improve. This panel includes really cool people like David Sibley and Richard Crossley, both of whom make field guides that you may own, artists Sophie Webb and Louise Zemaitis, and ABA President Jeffrey Gordon. (Go here to see the whole list of judges!)
Finally, after all your hard work and all their deliberation, you may win a prize! You might even become the next ABA Young Birder of the Year! You'll never know unless you try!
Here's the website with all the details: http://www.aba.org/yby/. I really hope you sign up!