what.wear.when Style Show – Saturday 9/16/2017 at 11:00 a.m. at Marshalltown Mall. The newest fall trends hit the runway in our what. wear. when. Fall Style Show! With tips on how to wear floral in fall, new long layers, and add details in unexpected ways, you won’t want to miss this show. Bring a friend and enter to win a wardrobe for a year, valued at $2,000.