These are Red Kap brand Mechanic shirts printed in Metallic Diamond Plate Silver and Matte Red. Pictures don't do it justice. 

Red Kap puts the toughest materials and advanced stay-clean technology into this shirt so you get the most out of it. This hardworking IL50 style is tested through 50 industrial launderer washes.

• 4.25-ounce, 65/35 poly/cotton with Touchtex™ technology for superior color retention, stain release and wickability
• Open collar with sewn-in stays
• 6 button with metal collar gripper closure at neck
• Two button-through pockets
• Bartacked pencil stall on left pocket