TIA Midi Length Button Up Dress The TIA Dress has structured shoulders, tailored pleating, & mandarin collar. This midi-length button up is a classic summer silhouette with a swinging skirt. Side pockets, a fitted waistline with elastic in the back, help to relax the feel. Covered placket center front button entry all the way down the skirt. Base your size on your waist measurement for perfect fit. A Heidi Merrick Classic. The white dress is from the designers website to give you an idea of what it looks like on. The dress is in perfect condition and comes from a smoke-free home.