This was my 7th year doing the BolderBoulder and it is by far my favorite race! I look forward to it each year.
It runs through Boulder and gives some great views of the flatirons. You finish running into Folsom field which is a rush with everyone cheering for you helps you finish strong.
T-shirt: you have options between short sleeve t-shirt, tech shirt, long sleeve, or all three together! I usually get the t-shirt. It is comfortable. You also get a calendar (which I use in my office each year) and some other goodies.
Course: The folks in Boulder are awesome! People sit out on their front lawns and share bacon, Doritos, marshmallows, and even have slip n slides! Beyond fun! It is a fun course with a few hills and tops out about 5300 feet.
Swag: You get a lunch bag with lots of goodies and a beer (can't drink them :(). I love the lunch bag and have used all of mine for the many years I have run it. It does get very crowded and sweaty in the field house where you pick it up but it usually moves pretty quick. There is an expo as well that gets pretty crowded but you can get some nifty things.
The Memorial Day tribute after the race is the best part. You and about 70,000 of your closest friends in the stands at Folsom honoring those who served our country. It is just a cool thing to see.
It is a fun 10K if you run or walk and I look forward to it every year!