Rasco Fr’s Flame resistant Red and black buffalo plaid work shirts are the most popular colors on the market today. Popular back in the day, red and black buffalo plaid was a symbol of the working man. Rasco FR has never forgot this and brought it back by popular demand. Rasco’s Red Plaid FR shirt is not only stylish, more importantly it is manufactured to protect you in harsh environments. certified by the Underwriters Laboratories therefore you can rest assured this flame resistant shirt will protect your body if ever in a situation where a flash fire happens.