Alice Girl Preppy Dress XL

A cute one piece dress with detachable sleeves, worn a few times but it's a little short on me. Can accommodate a few sizes becauae of the lacing in the back, but it isn't shirred. Sleeves attach by little buttons on the cuffs, but the long sleeves have never been worn by me personally. There is a mystery stain? Dust? Dirt? On the back of the left sleeve, pictured, I haven't tried to remove it beyond a general washing of the garment. Flat Measurements Shoulders 15 in Length 34 in Waist 15 in Bust 16.5 in