Thank you for viewing. This is a Rugby Ralph Lauren shirt. It's a Rugby Ralph Lauren striped button-down shirt. This brand combines Ralph Lauren's classic style with preppy, vintage, and downtown elements for a playful design. Although the brand has ended, it has many fans, and many are looking for it. Size 15 1/2 converts to approximately 39cm neck circumference and 86cm sleeve length in Japanese centimeters. I haven't taken measurements. If you would like measurements, please feel free to comment. It belonged to my family, but they stopped wearing it, so I borrowed it and decided to declutter. They've forgotten when they bought it, but since the brand ended in 2013, it's been at least 12 years. The usage frequency was low, so it's still in wearable condition as shown in the photos, but please consider it a vintage item. Thank you for your understanding. I plan to ship via Yu-Pack (Yuyu-Mercari). Please feel free to ask any questions in the comments (*・ω・)*_ _) *bow*