To check if this item will fit properly, measure a similar clothing item that fits you well and compare it to the measurements given below. Measurements Lying FlatA. Shoulders (seam to seam) – 19.5″B. Chest (pit to pit) – 24″C. Sleeves (shoulder seam to end of cuff) – 27″D. Length (top of shoulder to bottom of hem) – 34″.