We've come up with a couple different ways to answer this, the first being "Classy and Comfortable," the second being "What You Would Wear to Your In-Law's Thanksgiving Dinner." Blazers, nice sweaters, casual dresses, button up shirts, and slacks are all fine. Heels, ties, etc. aren't necessary, but wear what makes you feel good! Part of the event will be outside in December in Colorado, so make sure you can be comfortable and cozy.
We appreciate your enthusiasm! However, we have been together for over 9 years and have been living together for more than 6 of them, and we have all the blenders/waffle irons/toasters/video games/furniture/dishes/computers/art/plants/candles/dog toys/fancy cheeses/measuring cups/throw pillows/towels/tupperware/blankets/etc that we could ever want. Please don't get us any material gifts, as we simply don't have the room for them! The most meaningful gift you could give us is a contribution to our honeymoon fund, which you can find on our registry page. We're planning a Disney Cruise in the Bahamas, and we greatly appreciate your support!