Barry Allen is a man of average height with a strong build, he has short blonde hair and bright green eyes. The Flash's superhero costume is a full-body suit that is all red, but has two small yellow lightning bolts across the waist and wrists. He has a yellow lightning bolt logo on his chest and boots.
Barry Allen is a laid back, witty and comedic man who takes very possible moment to talk. He is a very friendly , kind hearted and well mannered man with a great sense of humor who can get serious at times. Even when he is serious he still displays signs of immaturity, he often ignores what others say while he focused on something and he has a habit of being late to important events even with his super speed.