Men's Trust Me I'm a Mechanic T Shirt Funny Trust Me I'm a Mechanic T Shirt - Ideal Gift for Grease Monkeys! ONLY available from & Copyright of Bang Tidy Clothing. Bang Tidy Clothing is a Registered trade mark.Beware of imitations! Guaranteed FAST SHIPPING Size Guide Chest (to fit) S - 34/36", M - 38/40", L - 42/44", XL - 46/48", 2XL - 50/52"