ASTR The Label Nia Copper Houndstooth Long Sleeve Mini Dress. The Nia Dress features a metallic copper finish over a houndstooth pattern, a pointed collar that leads to a v-neckline & a cut-out keyhole detail with button closure. Long sleeves. Mini length. Pair with your favorite over-the-knee boots for the ultimate night-out look. Self: 95% Nylon, 5% Elastane. Lining: 95% Polyester, 5% Elastane. Pre-owned condition. Size Medium.