The US military Tan 499 troop support t-shirt is a standard issue undershirt worn with the OCP uniform. Constructed from a cotton and polyester blend, it serves as a durable and comfortable base layer.

• Color: Tan 499 (official military designation)
• Material: Cotton and polyester blend
• Designed as an undershirt for the OCP uniform

Issued to service members as part of the standard clothing bag for field and garrison use.