Navy work cap made from a wool and polyester blend. - Color: Navy - Material: Wool, polyester, acrylic, nylon, cotton - Style: Work cap - Lining: Patterned cotton Overall, it's a cute, crumpled hat. The yellow stitching is part of the design (see image 8) and was present from the time of purchase. Thank you for looking. ■Shipping Method Yuyu Mercari Bin (Will be folded compactly and shipped via Yu-Packet Post)